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 (Sr_xBa_1-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 Sr_xBa_1-xNb₂O₆.
Journal of Applied Physics 102:114112 (2007), DOI: 10.1063/1.2821754 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 Sr_xBa_1-xNb₂O₆ (SBN) in the composition range 0.32 < x < 0.82.
Acta Cryst. B 62:960--965 (2006), DOI: 10.1107/S0108768106038869 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 >>>

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 Sr_xBa_1-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 Sr_xBa_1-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 >>>

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 >>>

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 >>>

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 >>>

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 >>>

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 >>>

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: Induced non-colinear frequency doubling (INCFD) is presented as a characterization technique for electrooptic crystals. Using the interaction of two non-colinear laser beams, the method yields a three-dimensional spatial resolution. First experimental results on several samples of lithium niobate are presented. The limitations of the technique are discussed. (Close 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 K_1-xLi_xTaO₃.
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 >>>