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A. Niemer, R. Pankrath, K. Betzler, M. Burianek, M. Mühlberg:
Dielectric properties and the phase transition of pure and cerium doped calcium-barium-niobate.
World Journal of Concensed Matter Physics 2(2):80-84 (2012), DOI: 10.4236/wjcmp.2012.22014   Abstract  >>>

B. Andriyevsky, K. Doll, G. Cakmak, M. Jansen, A. Niemer, K. Betzler:
DFT-based ab initio study of structural and electronic properties of lithium fluorooxoborate LiB6O9F and experimentally observed second harmonic generation.
Phys. Rev. B 84:125112 (2011), DOI: 10.1103/PhysRevB.84.125112   Abstract  >>>

Urs Heine, Klaus Betzler, Manfred Burianek, Manfred Mühlberg:
The temperature dependence of the band edge energy in calcium barium niobate.
Phys. Status Solidi RRL 4:166-168 (2010), DOI: 10.1002/pssr.201004158   Abstract  >>>

Uwe Voelker, Kai Dinges, Urs Heine, Klaus Betzler:
Lengths of ferroelectric domains: the role of defects and random fields.
Phys. Rev. B 81:214104 (2010), DOI: 10.1103/PhysRevB.81.214104   Abstract  >>>

Isabella-Ioana Oprea, Uwe Voelker, Alexander Niemer, Rainer Pankrath, Sergey Podlozhenov, Klaus Betzler:
Influence of erbium doping on phase transition and optical properties of strontium barium niobate.
Optical Materials 32:30-34 (2009), DOI: 10.1016/j.optmat.2009.05.015   Abstract  >>>

Urs Heine, Uwe Voelker, Klaus Betzler, Manfred Burianek, Manfred Muehlberg:
The ferroelectric phase transition of calcium barium niobate: experimental evidence of Smolenskii’s model for diffuse phase transitions?.
New Journal of Physics 11:083021 (2009), DOI: 10.1088/1367-2630/11/8/083021   Abstract  >>>

Ä. Andresen, A.-N. Bahar, D. Conradi, I.-I. Oprea, R. Pankrath, U. Voelker, K. Betzler, M. Wöhlecke, U. Caldiño, E. Martín, D. Jaque and J. García Solé:
Spectroscopy of Eu3+ ions in congruent strontium barium niobate crystals.
Phys. Rev. B 77:214102 (2008), DOI: 10.1103/PhysRevB.77.214102   Abstract  >>>

C. David, A. Tunyagi, K. Betzler and M. Wöhlecke:
Compositional dependence of optical and vibrational properties of Strontium-Barium-Niobate (SrxBa1-xNb2O6).
phys. stat. sol. (b) 244:2127-2137 (2007), DOI: 10.1002/pssb.200642370   Abstract  >>>

Kunpeng Wang, Yuchen Ma, Klaus Betzler:
Defect-induced spin deterioration of La[sub 0.64]Sr[sub 0.36]MnO[sub 3]: Ab initio study.
Physical Review B (Condensed Matter and Materials Physics) 76:144431 (2007), DOI: 10.1103/PhysRevB.76.144431   Abstract  >>>

Uwe Voelker, Urs Heine, Christoph Gödecker, Klaus Betzler:
Domain size effects in a uniaxial ferroelectric relaxor system: The case of SrxBa1-xNb2O6.
Journal of Applied Physics 102:114112 (2007), DOI: 10.1063/1.2821754   Abstract  >>>

T. Volk, M. Wöhlecke, N. Rubinina:
Optical damage resistance in lithium niobate.
In Photorefractive Materials and their Applications 2 - Materials, Ed. P. Günter 114:165-203 (2007),   Abstract  >>>

B. Briat, V. G. Grachev, G. I. Malovichko, O. F. Schirmer, M. Wöhlecke:
Defects in Inorganic Photorefractive Materials and Their Investigations.
In Photorefractive Materials and their Applications 2 - Materials, Ed. P. Günter 114:9-49 (2007),   Abstract  >>>

M. P. Petrov, V. V. Bryksin M. Lemmer, B. Hilling, M. Wöhlecke, M. Imlau:
Interactions of optically generated space-charge waves with magnetic fields in semi-insulating InP:Fe single crystals.
PHYSICAL REVIEW B 75, 76:033202 (2007), DOI: 10.1103/PhysRevB.76.033202   Abstract  >>>

Uwe Voelker and Klaus Betzler:
Domain morphology from k-space spectroscopy of ferroelectric crystals.
Phys. Rev. B 74:132104 (2006), DOI: 10.1103/PhysRevB.74.132104   Abstract  >>>

Isabella-Ioana Oprea, Hartmut Hesse, and Klaus Betzler:
Luminescence of erbium-doped bismuth-borate glasses.
Opt. Mater. 28:1136-1142 (2006), DOI: 10.1016/j.optmat.2005.07.004   Abstract  >>>

Sergey Podlozhenov, Heribert A. Graetsch, Julius Schneider, Michael Ulex, Manfred Wöhlecke and Klaus Betzler:
Structure of strontium barium niobate SrxBa1-xNb2O6 (SBN) in the composition range 0.32 < x < 0.82.
Acta Cryst. B 62:960--965 (2006), DOI: 10.1107/S0108768106038869   Abstract  >>>

J. Schefer, D. Schaniel, V. Pomjakushin, U. Stuhr, V. Petricek, Th. Woike, M. Wöhlecke, M. Imlau:
Structural properties of Sr0.61Ba0.39Nb2O6 in the temperature range 10 to 500 K investigated by high-resolution neutron powder diffraction and specific heat measurements.
Phys. Rev. B 74:134103 (2006), DOI: 10.1103/PhysRevB.74.134103   Abstract  >>>

C. Merschjann, D. Berben, M. Imlau, M. Wöhlecke:
Evidence for Two-Path Recombination of Photoinduced Small Polarons in Reduced LiNbO3.
Phys. Rev. Lett. 96:186404 (2006), DOI: 10.1103/PhysRevLett.96.186404   Abstract  >>>

M. Goulkov, O. Fedorenko,Th. Woike, T. Granzow, M. Imlau, M. Wöhlecke:
Intensity dependent properties of photo-induced light scattering in ferroelectric Sr0.61Ba0.39Nb2O6:Ce.
J. Phys.: Condens. Matter 18:3037-3052 (2006), DOI: 10.1088/0953-8984/18/11/010   Abstract  >>>

Isabella-Ioana Oprea, Hartmut Hesse, and Klaus Betzler:
Infrared-to-visible upconversion luminescence in neodymium-doped bismuth-borate glass.
phys. stat. sol. (b) 242:R109 (2005), DOI: 10.1002/pssb.200541197   Abstract  >>>

T. Volk, D. Isakov, N. Ivanov, L. Ivleva, K. Betzler, A. Tunyagi, and M. Wöhlecke:
Study of ferroelectric domain switching by domain-wall induced light scattering.
J. Appl. Phys. 97:074102 (2005), DOI: 10.1063/1.1882772   Abstract  >>>

T. Volk, M. Wöhlecke:
Thermal fixation of the photorefractive holograms recorded in lithium niobate and related crystals.
Critical Reviews in Solid State and Materials Sciences 30:125-151 (2005), DOI: 10.1080/10408430500198631   Abstract  >>>

M. Goulkov, O. Fedorenko, L. Ivleva, Th. Woike, T. Granzow, M. Imlau, M. Wöhlecke:
Temperature-dependent coherent oscillation in photorefractive relaxor strontium barium niobate.
J. Opt. Soc. Am. B 22:1648 (2005),   Abstract  >>>

M. Goulkov, O. Fedorenko, L. Ivleva, M. Böttcher, Th. Woike, T. Granzow, M. Imlau, M. Wöhlecke:
Photorefractive parametric scattering in the ferroelectric relaxor SBN: Phenomenological and application aspects.
Phys. Rev. B 71:024104 (2005), DOI: 10.1103/PhysRevB.71.024104   Abstract  >>>

D. Xue, K. Betzler, H. Hesse, K. Kitamura, H. Ratajczak and J. Wang:
Search for new optical crystals by the chemical bond method.
J. Synthetic Crystals 33:605-612 (2004),   Abstract  >>>

D. Isakov, T. Volk, L. Ivleva, K. Betzler, C. David, A. Tunyagi and M. Wöhlecke:
Study of ferroelectric domain switching by domain-wall induced light scattering.
ZhETP-Letters 80:289 (2004),   Abstract  >>>

Michael Ulex, Rainer Pankrath, Klaus Betzler:
Growth of strontium barium niobate: the liquidus-solidus phase diagram.
J. Crystal Growth 271:128 (2004), DOI: 10.1016/j.jcrysgro.2004.07.039   Abstract  >>>

Isabella-Ioana Oprea, Hartmut Hesse, Klaus Betzler:
Optical properties of bismuth borate glasses.
Opt. Mat. 26:235 (2004), DOI: 10.1016/j.optmat.2003.10.006   Abstract  >>>

C. David, T. Granzow, A. Tunyagi, M. Wöhlecke, Th. Woike, K. Betzler, M. Ulex, M. Imlau, and R. Pankrath:
Composition dependence of the phase transition temperature in SrxBa1-xNb2O6.
phys. stat. sol. (a) 201:R49 (2004), DOI: 10.1002/pssa.200409044   Abstract  >>>

C. David, A. Tunyagi, M. Ulex, M. Wöhlecke, K. Betzler, K. Lengyel, L. Kovács:
Structure of the OH- stretching vibrational band in SrxBa1-xNb2O6.
J. Appl. Phys. 95:5522 (2004), DOI: 10.1063/1.1712011   Abstract  >>>

C. Bäumer, C. David, K. Betzler, H. Hesse, K. Lengyel, L. Kovács, M. Wöhlecke:
Composition Dependence of the OH-Stretch-Mode Spectrum in Lithium Tantalate.
phys. stat. sol. (a) 201:R13 (2004), DOI: 10.1002/pssa.200409028   Abstract  >>>

H. Sreemoolanadhan, M. T. Sebastian, R. Ratheesh, R. Blachnik, M. Woehlecke, B. Schneider, M. Neumann, P. Mohanan:
Microwave dielectric properties of BaO-2CeO2-nTiO2 ceramics.
J. Sol. St. Chemistry 177:3995 (2004),   Abstract  >>>

D. Schaniel, Th. Woike, G. Weckwerth, J. Schefer, M. Imlau, M. Wöhlecke, R. Pankrath:
Valence sensitive determination of the doping concentration in Sr0.61Ba0.39Nb2O6 doped with Cr3+ and Ce3+ from magnetization measurements.
Phys. Rev. B 70:144410 (2004), DOI: 10.1103/PhysRevB.70.144410   Abstract  >>>

U. Dörfler, T. Granzow, Th. Woike, M. Wöhlecke, R. Pankrath, M. Imlau:
Intensity and wavelength dependence of the photoconductivity in Cr-doped Sr0.61Ba0.39Nb2O6.
Eur. Phys. J. B 38:19-24 (2004), DOI: 10.1140/epjb/e2004-00094-0   Abstract  >>>

T. Volk, D. Isakov, V. Salobutin, L. Ivleva, P. Lykov, V. Ramzaev, M. Wöhlecke:
Effects of Ni doping on properties of strontium-barium-niobate crystals.
Sol. St. Commun. 130:223-226 (2004),   Abstract  >>>

T. Granzow, Th. Woike, M. Wöhlecke, M. Imlau, W. Kleemann:
Change from 3D-Ising to Random Field-Ising-Model Criticality in a Uniaxial Relaxor Ferroelectric.
Phys. Rev. Lett. 92:065704 (2004), DOI: 10.1103/PhysRevLett.92.065701   Abstract  >>>

U. Dörfler, T. Granzow, Th. Woike, M. Wöhlecke, R. Pankrath and M. Imlau:
Aging of the ferroelectric hysteresis in Ce-doped Strontium-Barium-Niobate observed by holographic phase gratings.
Appl. Phys. B 78:211-215 (2004), DOI: 10.1007/s00340-003-1351-z   Abstract  >>>

Arthur R. Tunyagi, Michael Ulex, Klaus Betzler:
Non-collinear optical frequency doubling in strontium barium niobate.
Phys. Rev. Lett. 90:243901 (2003), DOI: 10.1103/PhysRevLett.90.243901   Abstract  >>>

Ch. Bäumer, C. David, A. Tunyagi, K. Betzler, H. Hesse, E. Krätzig, M. Wöhlecke:
Composition dependence of the ultraviolet absorption edge in lithium tantalate.
J. Appl. Phys. 93:3102 (2003), DOI: 10.1063/1.1542689   Abstract  >>>

K.-U. Kasemir, K. Betzler:
Detecting ellipses of limited eccentricity in images with high noise levels.
Image and Vision Computing 21:221 (2003),   Abstract  >>>

M. Goulkov, O. Shinkarenko, L. Ivleva, P. Lykov, T. Granzow, Th. Woike, M. Imlau, M. Wöhlecke:
New Parametric Scattering in Photorefractive Sr0.61Ba0.39Nb2O6:Cr.
Phys. Rev. Lett. 91:243903 (2003),   Abstract  >>>

T. Volk, D. Isakov, L. Ivleva, M. Wöhlecke:
Ferroelectric switching of strontium-barium-niobate crystals in pulsed fields.
Appl. Phys. Lett. 83:2220 (2003),   Abstract  >>>

T. Granzow, Th. Woike, W. Rammensee, M. Wöhlecke, M. Imlau, R. Pankrath:
Influence of Ce and Cr doping on the pyroelectric behaviour of Sr0.61Ba0.39Nb2O6.
. stat. solidi (a) 197:R2-R4 (2003),   Abstract  >>>

T. Volk, B. Maximov, S. Sulyanov, N. Rubinina, M. Woehlecke:
Relation of the photorefracton and optical-damage resistance to the intrinsic defect structure in LiNbO3 crystals.
Optical Materials 23:229-233 (2003),   Abstract  >>>

D. Xue, K. Betzler, H. Hesse:
Chemical bond analysis of the nonlinear optical properties of the borate crystals LiB3O5, CsLiB6O10, and CsB3O5.
Applied Physics A 74:779 (2002),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse, H. Ratajczak:
Chemical bond analysis on second order nonlinear optical properties of Na2SeO4.H2SeO3.H2O.
Bulletin of the Polish Academy of Sciences-Chemistry 50:289 (2002),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse, D. Lammers:
Linear and nonlinear optical susceptibilities of orthorhombic rare earth molybdates RE2(MoO4)3.
J. Phys. Chem. Solids 63:359 (2002),   Abstract  >>>

T. Granzow, Th. Woike, M. Wöhlecke, M. Imlau, and W. Kleemann:
Polarization-Based Adjustable Memory Behavior in Relaxor Ferroelectrics.
Phys. Rev. Lett. 89:127601 (2002),   Abstract  >>>

V. Szalay, L. Kovács, M. Wöhlecke, E. Libowitzky:
Stretching potential and equilibrium length of the OH bond in solids.
Chem. Phys. Letters 354:56 - 61 (2002),   Abstract  >>>

T. Granzow, U. Dörfler, Th. Woike, M. Wöhlecke, R. Pankrath, M. Imlau ,W. Kleemann:
Local electric-field-driven repoling reflected in the ferroelectric polarization of Ce-doped Sr0.61Ba0.39Nb2O6..
Appl. Phys. Letters 80:470 - 472 (2002),   Abstract  >>>

T. Granzow, U. Dörfler, Th. Woike, M. Wöhlecke, R. Pankrath, M. Imlau ,W. Kleemann:
Evidence of random electric fields in the relaxor-ferroelectric Sr0.61Ba0.39Nb2O6.
Europhysics Letters 57:597 - 603 (2002),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse, H. Ratajczak:
Theoretical analysis of the chemical bonding behavior and the dielectric properties of different phases of ice.
Bulletin of the Polish Academy of Sciences-Chemistry 49:289 (2001),   Abstract  >>>

D.Xue, K. Betzler:
Influence of optical-damage resistant dopants on the nonlinear optical properties of lithium niobate.
Applied Physics B 72:641 (2001),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Induced Li-site vacancies and nonlinear optical behavior of doped lithium niobate crystals.
Optical Materials 16:381 (2001),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Second order nonlinear optical properties of In-doped lithium niobate.
J. Appl. Phys. 89:849 (2001),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse, D. Lammers:
Temperature dependence of the dielectric response of lithium niobate.
J. Phys. Chem. Solids 62:973 (2001),   Abstract  >>>

V. V. Gladkii, V. A. Kirikov, E. V. Pronina, T. R. Volk, R. Pankrath, M. Wöhlecke:
Anomalies in the Slow Polarisation Kinetics of a Ferroelectric relaxor in the Temperature Region of a Diffuse Phase Transition.
Physics of the Solid State 43:2140-2145 (2001),   Abstract  >>>

T. Volk, L. Ivleva , P. Lykov, D. Isakov, V. Osiko, M. Wöhlecke:
Modification of the optical and photorefractive properties of Ce-doped strontium-barium niobate by co-doping with a nonphotorefractive La impurity.
Appl. Phys. Letters 79:854 (2001),   Abstract  >>>

T. Volk, L. Ivleva, P. Lykov, N. Pollok, V. Salobutin, R. Pankrath, M. Wöhlecke:
Effects of rare-earth impurity doping on the ferroelectric and photorefractive properties of strontium-barium niobate crystals.
Optical Materials 18:179 (2001),   Abstract  >>>

Th. Woike, T. Granzow, U. Dörfler, Ch. Poetsch, M. Wöhlecke, R. Pankrath:
Refractive Indices of congruently melting Sr0.61Ba0.39Nb2O6.
phys. stat. sol. (a) 186:R 13 (2001),   Abstract  >>>

M. Wöhlecke, L. Kovács:
OH- ions in Oxide Crystals.
Critical Reviews in Solid State and Materials Sciences 26:1 - 86 (2001),   Abstract  >>>

T. Granzow, U. Dörfler, Th. Woike, M. Wöhlecke, R. Pankrath, M. Imlau, W. Kleemann:
Influence of pinning effects on the ferroelectric hysteresis in cerium-doped SrxBa1-xNb2O6.
Phys. Rev B 63:174101 (2001),   Abstract  >>>

T. Volk, B. Maximov, T. Chernaya, N. Rubinina, M. Wöhlecke, V. Simonov:
Photorefractive Properties of LiNbO3:Zn Crystals Related to the Defect Structure.
Appl. Phys. B 72:647 (2001),   Abstract  >>>

Th. Woike, U. Dörfler, L. Tsankov, G. Weckwerth, D. Wolf, M. Wöhlecke, T. Granzow, R. Pankrath, M. Imlau, W. Kleemann:
Photorefractive properties of Cr-doped Sr0.61Ba0.39Nb2O6 related to crystal purity and doping concentration.
Appl. Phys. B 72:661 (2001),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Dielectric properties of I-III-VI2 type chalcopyrite semiconductors.
Physical Review B15 62:13546 (2000),   Abstract  >>>

D. Lammers, K. Betzler, D. Xue, J. Zhao:
Optical Second-Harmonic Generation in Benzophenone.
physica status solidi (a) 180:R5 (2000),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Chemical bond analysis of the second order nonlinear optical behavior of Zn-doped lithium niobate.
Optics Communications 182:167 (2000),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Dielectric properties of lithium niobate-tantalate crystals.
Solid State Communications 115:581 (2000),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Chemical bond analysis of the second order nonlinear optical behavior of Mg-doped lithium niobate.
J. Phys.: Condens. Matter 12:6245 (2000),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse, D. Lammers:
Nonlinear optical properties of borate crystals.
Solid State Communications 114:21 (2000),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Dielectric constants of binary rare-earth compounds.
J. Phys.: Condens. Matter 12:3113 (2000),   Abstract  >>>

D.Xue, K. Betzler, H. Hesse:
Structural characteristics and second order nonlinear optical properties of borate crystals.
Trends in Optics and Photonics Series 34:542 (2000),   Abstract  >>>

D. Xue, K. Betzler, H. Hesse, D. Lammers, S. Zhang:
Theoretical studies of nonlinear optical properties of compounds K4Ln2(CO3)3F4 (Ln=Pr, Nd, Sm, Eu, Gd).
J. Appl. Physics 87:2849 (2000),   Abstract  >>>

K. Betzler, H. Hesse, R. Jaquet, D. Lammers:
Optical second-harmonic generation in lead formate.
J. Appl. Physics 87:22 (2000),   Abstract  >>>

M. Meyer, M. Wöhlecke, O. F. Schirmer:
On the temperature dependence of the band edge of Sr0.61Ba0.39Nb2O6.
. stat. sol. (b) 221:R 1 (2000),   Abstract  >>>

R. Ratheesh, M. Wöhlecke, B. Berge, Th. Wahlbrink, H. Haeuseler, E. Rühl, R. Blachnik, P. Balan, N. Santha, M. T. Sebastian:
Raman study of the ordering in Sr(B'0.5Nb0.5)O3 compounds.
J. Appl. Phys. 88:2813 (2000),   Abstract  >>>

T. R. Volk, V. Yu. Salobutin, L. I. Ivleva, N. M. Polozkov, R. Pankrath, and M. Wöhlecke:
Ferroelectric Properties of Strontium Barium Niobate Crystals Doped with Rare-Earth Metals.
Physics of the Solid State 42:2129-2136 (2000),   Abstract  >>>

D. Xue, K. Betzler, H. Hesse, D. Lammers:
Relationship between Dielectric Responses and Constituent Atoms in Crystal Materials.
physica status solidi (b) R7:216 (1999),   Abstract  >>>

D. Xue, K. Betzler, H. Hesse, D. Lammers:
Origin of the Large Nonlinear Optical Coefficients in Bismuth Borate BiB3O6.
physica status solidi (a) 176/2:R1 (1999),   Abstract  >>>

K.-U. Kasemir, K. Betzler:
Characterization of photorefractive materials by spontaneous noncolinear frequency doubling.
Applied Physics B 68:763 (1999),   Abstract  >>>

Chr. a. d. Horst, K.-U. Kasemir, K. Betzler:
Determination of Homogeneity of Pure and Doped Lithium Niobate by SHG Temperature Phase-Matching.
J. Appl. Physics 84:5158 (1998),   Abstract  >>>

K. Kasemir, K. Betzler, B. Matzas, B. Tiegel, T. Wahlbrink, M. Wöhlecke, B. Gather, N. Rubinina, T. Volk:
Influence of Zn/In Codoping on the Optical Properties of Lithium Niobate.
J. Appl. Physics 84:5191 (1998),   Abstract  >>>

K. Kasemir, K. Betzler, B. Matzas, B. Tiegel, M. Wöhlecke, N. Rubinina, T. Volk:
Influence of In Doping on the Refractive Indices of Lithium Niobate.
physica status solidi (a) 166/1:R7 (1998),   Abstract  >>>

K. Chah, M. Aillerie, M. D. Fontana, G. I. Malovichko, K. Betzler, E. Kokanyan:
Influence of chromium doping on the electro-optic properties of lithium niobate.
Optics Commun. 136:231 (1997),
Abstract: We present the measurements of the refractive indices and the electro-optic coefficients in lithium niobate crystals doped with a small amount of chromium. It is found that the coefficient r(c) has a significant dependence on the Cr concentration, Electrical moments and deformations, created by Cr3+ at non-isovalent replacement of host lattice ions, can be responsible for this effect. (Close Abstract <<<)

A. Reichert, K. U. Kasemir, K. Betzler:
Application of noncolinear frequency doubling for crystal characterization.
Materials Science Forum 239-241:329 (1997),   Abstract  >>>

M. Wöhlecke, G. Corradi, K. Betzler:
Optical Methods to Characterise the Composition and Homogeneity of Lithium Niobate Single Crystals.
Applied Physics B 63:323 (1996),   Abstract  >>>

A. Reichert, K. Betzler:
Induced noncolinear frequency doubling: A new characterization technique for electrooptic crystals.
J. Appl. Phys. 79:2209 (1996),   Abstract  >>>

U. Schlarb, B. Matzas, A. Reichert, K. Betzler, M. Wöhlecke, B. Gather, T. Volk:
Refractive indices of Zn/In-co-doped lithium niobate.
Ferroelectrics 185:269 (1996),   Abstract  >>>

A. Reichert, K. U. Kasemir, K. Betzler:
Crystal characterization by noncolinear frequency doubling.
Ferroelectrics 184:21 (1996),   Abstract  >>>

T. Volk, M. Wöhlecke, N. Rubinina, A. Reichert, and N. Razumovski:
Optical-damage-resistant impurities (Mg, Zn, In, Sc) in lithium niobate.
Ferroelectrics 183:291 (1996),   Abstract  >>>

U. Schlarb, A. Reichert, K. Betzler, M. Wöhlecke, B. Gather, T. Volk, N. Rubinina:
SHG phase matching conditions for undoped and doped lithium niobate.
Rad. Effects and Defects in Solids 136(1-4):1029 (1995),   Abstract  >>>

U. Schlarb, M. Wöhlecke, B. Gather, A. Reichert, K. Betzler, T. Volk, N. Rubinina:
Refractive indices of Zn-doped lithium niobate.
Optical Materials 4:791 (1995),   Abstract  >>>

T. Volk, M. Wöhlecke, A. Reichert, F. Jermann, and N. Rubinina:
The peculiar impurity concentration ranges in damage resistant LiNbO3 crystals doped with Mg, Zn, In, and Sc.
Ferroelectrics Letters 20:97 (1995),   Abstract  >>>

F. Kahmann, A. Reichert, K. Lytze, R. Blachnik, K. Betzler, R. Rupp:
Photorefractive effect in Cd13P4S22I2.
Phys. Rev. B 52:870 (1995),   Abstract  >>>

U. Schlarb, K. Betzler:
Influence of the defect structure on the refractive indices of undoped and Mg-doped lithium niobate.
Phys. Rev. B 50:751 (1994),   Abstract  >>>

U. Schlarb, B. Sugg:
Refractive index of terbium gallium garnet.
Phys. stat. sol. (b) 182:K91 (1994),   Abstract  >>>

U. Schlarb, K. Betzler:
A generalized Sellmeier equation for the refractive indices of lithium niobate.
Ferroelectrics 156:99 (1994),   Abstract  >>>

A. Reichert, K. Betzler:
Non-colinear frequency doubling in lithium niobate.
Ferroelectrics 156:93 (1994),   Abstract  >>>

U. Schlarb and K. Betzler:
Refractive indices of lithium niobate as a function of temperature, wavelength, and composition: A generalized fit.
Phys. Rev. B 48:15613 (1993),   Abstract  >>>

U. Schlarb, S. Klauer, M. Wesselmann, K. Betzler and M. Wöhlecke:
Determination of the Li/Nb Ratio in Lithium Niobate by Means of Birefringence and Raman Measurements.
Appl. Phys. A 56:311 (1993),   Abstract  >>>

U. Schlarb and K. Betzler:
Refractive indices of lithium niobate as a function of wavelength and composition.
J. Appl. Phys. 73:3472 (1993),   Abstract  >>>

G. I. Malovichko, V. G. Grachev, E. P. Kokanyan, O. F. Schirmer, K. Betzler, B. Gather, F. Jermann, S. Klauer, U. Schlarb, and M. Wöhlecke:
Characterization of stoichiometric LiNbO3 grown from melts containing K2O.
Appl. Phys. A 56:103 (1993),   Abstract  >>>

U. Schlarb, K. Betzler:
Interferometric measurement of refractive indices of LiNbO3.
Ferroelectrics 126:39 (1992),   Abstract  >>>

A. Reichert, K. Betzler:
Characterization of electrooptic crystals by non-collinear frequency doubling.
Ferroelectrics 126:9 (1992),   Abstract  >>>

N. Schmidt, P. Voigt, B. Hellermann, K. Betzler, H. Hesse, S. Kapphan:
Phase matching for second harmonic generation in KNbO3:Ta crystals with Nd:YAG- and GaAs-laser wavelengths.
Journal of Applied Physics 69:3426 (1991),   Abstract  >>>

N. Schmidt, P. Voigt, B. Hellermann, K. Betzler, H. Hesse, S. Kapphan:
Frequency doubling of YAG- and GaAs-lasers by KNbO3:Ta crystals.
Radiation Effects and Defects in Solids 119-121:281 (1991),   Abstract  >>>

N. Schmidt, K. Betzler, B. C. Grabmaier:
Composition dependence of the second-harmonic phase-matching temperature in LiNbO3.
Applied Physics Letters 58:34 (1991),   Abstract  >>>

P. Voigt, K. Betzler, N. Schmidt, S. Kapphan:
Second harmonic generation study of field-induced changes in the phase transition of K1-xLixTaO3.
Ferroelectrics 106:149 (1990),   Abstract  >>>

N. Schmidt, K. Betzler, M. Grabs, S. Kapphan, F. Klose :
Spatially resolved second-harmonic generation investigations of proton-induced refractive index changes in LiNbO3.
J. Appl. Phys. 65:1253 (1989), DOI: 10.1063/1.343018   Abstract  >>>

K. Betzler, A. Gröne, N. Schmidt, P. Voigt :
Interferometric measurement of refractive indices.
Rev. Sci. Instr. 59:652 (1988), DOI: 10.1063/1.1139853   Abstract  >>>

K. Betzler, B. Hellermann, H. Hesse :
Influence of the dielectric constant anisotropy on the poling of ferroelectrics .
Ferroelectrics Letters 7:143 (1987), DOI: 10.1080/07315178708200543   Abstract  >>>

N. Schmidt, K. Betzler, S. Kapphan:
Spatially resolved second harmonic generation and interferometric investigations of LiNbO3 crystals.
Cryst. Latt. Def. and Amorph. Mat. 15:103 (1987),   Abstract  >>>

M. Grabs, K. Betzler, S. Kapphan:
Optical second harmonic measurements on KTaO3:Li .
Ferroelectrics Letters 2:41 (1984), DOI: 10.1080/07315178408202432   Abstract  >>>

L. Schüler, K. Betzler, H. Hesse, S. Kapphan:
Phase-matched second harmonic generation in potassium malate.
Opt. Commun. 43:157 (1982), DOI: 10.1016/0030-4018(82)90112-2   Abstract  >>>

K. Betzler:
Second harmonic generation near the phase transition of SrTiO3.
Ferroelectrics 26:819 (1980), DOI: 10.1080/00150198008008179   Abstract  >>>

K. Betzler, D. Bäuerle:
Second-harmonic generation in “Cubic” PLZT ceramics.
Appl. Phys. A 18:271 (1979), DOI: 10.1007/BF00885513   Abstract  >>>

K. Betzler, D. Bäuerle:
Second harmonic generation in squaric acid.
Phys. Letters A 70:153 (1979), DOI: 10.1016/0375-9601(79)90054-9   Abstract  >>>

K. Betzler, H. Hesse, P. Loose:
Optical second harmonic generation in organic crystals: urea and ammonium-malate.
J. Molecular Structure 47:393 (1978), DOI: 10.1016/0022-2860(78)87207-X   Abstract  >>>

P. Loose, K. Betzler, D. Bäuerle, S. Kapphan:
Rayleigh scattering near the paraelectric-ferroelectric phase transition in BaTiO3.
Proc. Int. Conf. Lattice Dynamics, Flammarion :681 (1978),   Abstract  >>>

K. Betzler, H. Hesse, P. Loose:
Optical second harmonic generation in ammonium malate.
Opt. Commun. 22:66 (1977), DOI: 10.1016/0030-4018(77)90248-6   Abstract  >>>

D. Bäuerle, K. Betzler, H. Hesse, S. Kapphan, P. Loose:
Phase-matched second harmonic generation in urea.
phys. stat. sol. (a) 43:K119 (1977), DOI: 10.1002/pssa.2210420254   Abstract  >>>

A. L. Karuzskii, K. Betzler, B. G. Zhurkin,W. P. Aksenov:
Magnetooscillations of the EHD luminescence in As-doped Ge.
Molecular spectroscopy of dense phases, Elsevier Amsterdam :139 (1976),   Abstract  >>>

K. Betzler, B. G. Zhurkin, A. L. Karuzskii, B. M. Balter:
Magnetooscillations of the electron-hole drop luminescence in germanium.
J. Luminescence 12-13:651 (1976), DOI: 10.1016/0022-2313(76)90156-3   Abstract  >>>

Klaus Betzler:
Auger recombination in the electron-hole drops in Si and Ge .
Lecture Notes in Physics - Physics of Highly Excited States in Solids 57:211 (1976), DOI: 10.1007/3-540-07991-2   Abstract  >>>

K. Betzler, B. G. Zhurkin, A. L. Karuzskii:
Magnetic-field dependent intensity oscillations of the EHD luminescence in pure germanium.
Sol. State Commun. 17:577 (1975),   Abstract  >>>

K. Betzler, R. Conradt:
Two-electron band to band transitions in silicon.
Sol. State Commun. 17:823 (1975),   Abstract  >>>

K. Betzler, B. G. Zhurkin, A. L. Karuzskii:
Magnetooscillations of the EHD TA-Line in Pure Germanium.
phys. stat. sol. (b) 70:K109 (1975), DOI: 10.1002/pssb.2220700247   Abstract  >>>

K. Betzler, B. G. Zhurkin, A. L. Karuzskii:
Magnetic field dependent intensity oscillations of the EHD luminescence in pure germanium.
Series of Selected Papers in Physics: Electron-Hole Drops (Phys. Soc. Jap.) :108 (1975),   Abstract  >>>

A. L. Karuzskii, K. Betzler, B. G. Zhurkin, B. M. Balter:
Magnitnie oszilljazii poluschirini linii ljumineszenzii EDK w tschistom germanii.
Zh. Eks. Teor. Fis. 69:1088 (1975),   Abstract  >>>

A. L. Karuzskii, K. Betzler, B. G. Zhurkin,W. P. Aksenov:
Magnitnie oszilljazii ljumineszenzii elektronno-dirotschnich kapel w germanii c primes’ju misch’jaka.
Fiz. Tverd. Tela 17:3104 (1975),   Abstract  >>>

A. L. Karuzskii, K. Betzler, B. G. Zhurkin, B. M. Balter:
Magnitnie oszilljazii wremeni schisni elektronno-dirotschnich kapel w tschistom Ge.
Pis’ma w ZhETF 22:65 (1975),   Abstract  >>>

P. S. Gladkov, K. Betzler, B. G. Zhurkin, A. L. Karuzskii.:
Spektralnaja sawisimost magnitnich oszilljazii intensiwnosti ljumineszenzii EDK w tschistom Ge.
Zh. Eks. Teor. Fis. 69:2199 (1975),   Abstract  >>>

K. Betzler:
Relaxation of Auger-excited carriers in silicon.
Sol. State Commun. 15:1837 (1974),   Abstract  >>>

W. Zeh, K. Betzler, R. Conradt:
Two-electron transitions in germanium.
Sol. State Commun. 14:967 (1974),   Abstract  >>>

Klaus Betzler:
Untersuchung von Zwei-Elektronen-Rekombinations-Prozessen in Halbleitern mit indirekter Bandstruktur.
Dissertation Universität Stuttgart : (1974),   Abstract  >>>

K. Betzler, R. Conradt:
Two-electron transitions in germanium.
Sol. State Commun. 10:79 (1972),   Abstract  >>>

K. Betzler, R. Conradt:
Two-electron transitions in the condensed phase of nonequilibrium carriers in Si.
Phys. Rev. Lett. 28:1562 (1972), DOI: 10.1103/PhysRevLett.28.1562   Abstract  >>>

K. Betzler, T. Weller, R. Conradt:
Two-Electron Band-to-Band Transitions in Solids.
Phys. Rev. B 6:1394 (1972), DOI: 10.1103/PhysRevB.6.1394   Abstract  >>>

K. Betzler, R. Conradt:
Radiative two-electron transitions in the electron-hole plasma in silicon at 2 K.
Proc. Int. Conf. Sem. Warsaw :684 (1972),   Abstract  >>>

K. Betzler, T. Weller, R. Conradt:
Improvement of photon counting by means of a pulse height analyzer.
Rev. Sci. Instr. 42:1594 (1971),   Abstract  >>>

K. Betzler, T. Weller, R. Conradt:
Experimental evidence of two-electron transitions in solids.
Phys. Rev. Lett. 26:640 (1971), DOI: 10.1103/PhysRevLett.26.640   Abstract  >>>

Klaus Betzler:
Photonenemission oberhalb der Bandkante von Halbleitern.
Diplomarbeit Universität Stuttgart : (1971),   Abstract  >>>

 

Letzte Bearbeitung: 2010-12-13 - Klaus Betzler