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Publications before 2001


Publications in reviewed journals: 


Luminescence and quantized  Lightfield: 


  1. A. Knorr, K.E. Süsse, D.G. Welsch,

    "Coherent Interatomic Interactions and Cooperative Effects in

    Resonance Fluorescence",

    J. Opt. Soc. Am. B 9, 1174 (1992).



  2. A.Thränhardt, S.Kuckenburg, A.Knorr, T.Meier, and S.W.Koch,


    Quantum Theory of Phonon Assisted Excitonic

    Luminescence in Semiconductor Quantum Wells


    Phys.Rev.B 62, 2706 (2000).



  3. S.Kuckenburg, A.Thränhardt, A.Knorr,

    M.Kira, F.Jahnke, and S.W.Koch,


    Many Body Quantum Theory of the

    Sponteneous Emission

    of Semiconductor Quantum Wells


    Phys.Stat.Sol.(a) 178, 409 (2000).



  4. A.Thränhardt, S.Kuckenburg, A.Knorr, and S.W.Koch,


    Coherent and Incoherent Contributions

    to Secondary Emission


    Phys.Stat.Sol.(b) 221, 227 (2000).



  5. A.Knorr, S.W.Koch, and W.W.Chow


    Optics in the Multipole Approximation:

    From Atomic Systems to Solids


    Opt.Comm. 179, 167 (2000).



  6. A.Thränhardt, S.Kuckenburg, A.Knorr, P.Thomas, and S.W.Koch,


    Interplay between coherent and incoherent scattering

    in quantum well secondary emission


    Phys.Rev.B 62, 16802 (2000).

    Stark-Effect and adiabatic processes:




  7. N. Peyghambarian, P.A. Harten, A.Knorr, J.P. Sokoloff, F.

    Brown de Colstoun, S.G. Lee, R. Jin, E.M. Wright, G. Khitorova,

    H.M. Gibbs, and S.W. Koch,

    "Stark-Effect and Coherent Pulse Breakup

    in Femtosecond Pulse Propagation in


    Phys. Stat. Sol. b 173, 41 (1992).



  8. C.Sieh, T.Meier, F.Jahnke, A.Knorr, S.W.Koch,

    P.Brick, M.Hübner, C.Ell, J.Prineas, G.Khitrova,

    and H.M.Gibbs,



    Coulomb Memory Signatures in the

    Excitonic Optical Stark Effect


    Phys.Rev.Lett.82, 3112 (1999).



  9. P.Brick, M.Hübner, C.Ell, J.Prineas, G.Khitrova, H.M.Gibbs,

    C.Sieh, T.Meier, F.Jahnke, A.Knorr, and S.W.Koch



    Coulomb Memory Effects and Higher Order

    Coulomb Correlations in the

    Excitonic Optical Stark Effect


    Phys.Stat.Sol.(a) 178, 459 (2000).



    Electronic density Rabi osciliations:



  10. S.W. Koch, A. Knorr, R. Binder, M. Lindberg,

    "Microscopic Theory of Rabi Flopping, Photon Echo, and Resonant

    Pulse Propagation in Semiconductors",

    Phys. Stat. Sol. 173, 177 (1992).



  11. Th.Östreich and A.Knorr,

    "Various Appearences of Rabi-oscillations in Semiconductors for

    -Pulse Excitation",

    Phys.Rev.B 48, 17811, (1993).



  12. A.Knorr, Th.Östreich, K.Schönhammer, R.Binder and


    "Asymptotic analytic Solution for Rabi-oscillations in a System

    of weakly excited Excitons",

    Phys.Rev.B 49, 14024 (1994).



  13. S.T.Cundiff, A.Knorr, J.Feldmann, S.W.Koch, E.Göbel, and H.Nickel

    "Rabi Flopping in Semiconductors"

    Phys.Rev.Lett. 73, 1178 (1994).



  14. Th.Östreich and A.Knorr,

    "Nonperturbative scaling behavior of the semiconductor Bloch-equations

    in the low density limit"

    Phys.Rev.B 50, 5717 (1994).



  15. S.T.Cundiff, A.Knorr, J.Feldmann, S.W.Koch, E.O.Göbel,

    "Excitation Induced Density Flops in

    Semiconductors", Phys.Stat.Sol.b 188, 307 (1995).



    Light pulse propagation:



  16. A. Knorr, R. Binder, M. Lindberg, and S.W. Koch,

    "Theoretical Study of Resonant Ultrashort Pulse Propagation in


    Phys. Rev. A 46, 7179 (1992).



  17. A.Knorr, R.Binder, E.M. Wright, and S.W.Koch,

    "Absorption of High Intensity Femtosecond Pulses in

    Semiconductor Amplifiers",

    Optics and Photonic News, Dec.1993, Vol.4, No.12, p.44.



  18. R.Indik, A.Knorr, R.Binder, J.Moloney, and S.W.Koch,

    "Propagation-Induced Adiabatic Following in a Semiconductor Amplifier"

    Opt. Lett. 19, 966 (1994).



  19. A.Knorr, R.Binder, E.M. Wright, and S.W.Koch,

    "Amplification, Absorption and lossless Propagation of Pulses in

    inverted Semiconductors",

    Optics and Photonic News, Oct.1993, Vol.4, No.10, p.43.



  20. R.A.Indik, J.V.Moloney, R.Binder, A.Knorr, S.W.Koch,

    ``Self-Induced Optical Channeling of Sub-Picosecond Pulses

    in Broad Area Bulk Semiconductor Amplifiers''

    Opt.Lett. 20, 2315 (1995).



  21. A.Knorr, T.Stroucken, A.Schulze, A.Girndt, and S.W.Koch,

    "Influence of Propagation Effects on the

    Coherent Optical Response of Semiconductors",

    Phys.Stat.Sol.b 188, 473 (1995).



  22. R.Indik, M.Mlejnek, J.Moloney, R.Binder,

    S.Hughes, A.Knorr, S.W.Koch,

    ``The Role of Plasma Cooling, Heating and Memory Effects

    in Sub-Picosecond Pulse Propagation in Semiconductor Amplifiers''

    Phys.Rev.A 53, 3614 (1996).



  23. H.Giessen, S.Linden, J.Kuhl, A.Knorr, S.W.Koch,

    F.Gindele, M.Hetterich, M.Grün, S.Petillon,

    C.Klingshirn, and N.Peyghambarian,

    ``Coherent High-Intensity Pulse Propagation

    on a Free Exciton Resonance in a Semiconductor''

    Phys.Stat.Sol.(b) 206, 27 (1998).



  24. H.Giessen, S.Linden, J.Kuhl, A.Knorr, S.W.Koch,

    M.Hetterich, M.Grün and C.Klingshirn,

    ``High-Intensity Pulse Propagation in Semiconductors:

    On-resonant Self-Induced Transmission

    and Effects in the Continuum''

    Optics Express 4, 121 (1999),

    Focus Issue on Laser Controlled

    Dynamics ed. by K.Bergmann.



  25. H.Giessen, S.Linden, J.Kuhl, A.Knorr, S.W.Koch,

    M.Hetterich, M.Grün and C.Klingshirn,

    ``Coherent Propagation at High-Intensities

    on a Free Exciton Resonance in a Semiconductor:

    Self-Induced Transmission''

    Superlattices and Microstructures 26, 103 (1999)

    Special Issue on Coherent Control ed. W.Pötz.



  26. H.Giessen, J.Kuhl, A.Knorr, and S.W.Koch,


    Self-induced transmission

    on a free exciton resonance in a semiconductor

    ", Optics and Photonics News 10, 27 (1999).



  27. J.Förstner, A.Knorr,

    and S.W.Koch



    Nonlinear Polariton Pulse Propagation in

    Bulk Semiconductors


    Phys.Stat.Sol.(b) 221, 453 (2000).



    Optical wave mixing 



  28. A.Girndt, A.Knorr, M.Hofmann, and S.W.Koch

    "Theoretical Analysis of ultrafast

    pump-probe experiments in semiconductor amplifiers"

    Appl.Phys.Lett. 66, 550 (1995).



  29. A.Schulze, A.Knorr, and S.W.Koch

    "Propagation and Many-Body Effects

    in Four-Wave Mixing in Semiconductors"

    Phys.Rev.B 51, 10601 (1995).



  30. A.Schulze, A.Knorr, P.Thomas, and S.W.Koch,

    ``Higher Order Wave Mixing in Semiconductors''

    Solid State Comm. 94, 911 (1995).



  31. A.Girndt, A.Knorr, M.Hofmann, and S.W.Koch

    "Theoretical Analysis of ultrafast

    pump-probe experiments in semiconductor amplifiers"

    Jour.Appl.Phys. 78, 2946 (1995).



  32. W.W.Chow, R.Indik, A.Knorr, J.Moloney, and S.W.Koch

    "Time Resolved Non-Degenerate

    Four-Wave Mixing in a Semiconductor Amplifier"

    Phys.Rev.A 52, 2479 (1995).



    Collective effectd in mesoscopic structures:



  33. T.Stroucken, A.Knorr, and S.W.Koch,

    ``Propagation-Induced Non-Lorentzian Lineshape Functions

    in Multiple Quantum Well Structures''

    Optics and Photonics News 12, 10 (1995).



  34. T.Stroucken, S.Haas, A.Knorr,

    P.Thomas, and S.W.Koch,

    ``Radiative Transport in

    Semiconductor Quantum Wells''

    Il Nuovo Cimento D 17, 1735 (1995).



  35. T.Stroucken, A.Knorr, P.Thomas, and S.W.Koch,

    `` Coherent Dynamics of Radiatively Coupled Quantum Wells''

    Phys.Rev.B 53, 2026, (1996).



  36. M.Hübner, J.Kuhl, T.Stroucken, A.Knorr, S.W.Koch, R.Hey, K.Ploog,

    Collective Effects of Excitons in Multiple Quantum Well

    Bragg Structures Phys.Rev.Lett. 76, 4199 (1996).



  37. D.Weber, J.Feldmann, T.Stroucken,

    A.Knorr, S.W.Koch, D.Citrin, K.Köhler, and E.O.Göbel,

    `` Coherent Dynamics as a Function of Quantum Well Number''

    Jour.Opt.Soc.Am.B 13, 1241 (1996).



  38. S.Bischoff, A.Knorr, and S.W.Koch,

    ``Theoretical Investigation of the

    Excitonic Semiconductor Response for Varying Material Thickness:

    Transition from Quantum Well to Bulk''

    Phys.Rev.B 55, 7715 (1997).



  39. S.Haas, T.Stroucken, A.Knorr, F.Jahnke, and S.W.Koch,

    ``Four-Wave Mixingin Radiatively Coupled

    Quantum Wells: A Model Study''

    Phys.Stat.Sol.(a) 164, 19 (1997).



  40. M.Hübner, J.Kuhl, T.Stroucken, B.Grote, S.Haas,

    A.Knorr, S.W.Koch, G.Khitrova and H.Gibbs

    ``Superradiant Coupling of Excitons in (InGa)As

    Multiple Quantum Wells''

    Phys.Stat.Sol.(b) 205, 333 (1998).



  41. S.Haas, T.Stroucken, M.Hübner, J.Kuhl, B.Grote,

    A.Knorr, F.Jahnke, S.W.Koch,

    ``Intensity Dependence of Superradiant Emission From

    Radiatively Coupled Excitons in Multiple Quantum Wells'',

    Phys.Rev.B 57, 14860 (1998).




    Disorder in mesoscopic systems:



  42. T.Stroucken, A.Knorr, C.Anthony, A.Schulze, P.Thomas, and S.W.Koch

    M.Koch, S.T.Cundiff, J.Feldmann, E.O.Göbel,

    "Light Propagation and Disorder Effects

    in Semiconductor Multiple Quantum Wells"

    Phys.Rev.Lett.74, 2391 (1995).



  43. T.Stroucken, C.Anthony, A.Knorr, P.Thomas, and S.W.Koch,

    "A Greens Function Approach to

    Disordered Semiconductors", Phys.Stat.Sol.b 188, 539 (1995).



  44. B.Grothe, T.Stroucken, A.Knorr, and S.W.Koch,

    ``The Influence of Disorder on Radiatively Coupled

    Multiple Quantum Wells''

    Phys.Stat.Sol.(a) 164, 2231 (1997).



    Electronic transport:



  45. A.Knorr, F.Steininger,

    A.Girndt, T.Stroucken, S.Haas,

    W.W.Chow, P.Thomas, and S.W.Koch,

    ``Ballistic Electron Transport and

    Pulse Propagation in

    Semiconductor Quantum Wells''

    Il Nuovo Cimento D 17, 1265 (1995).



  46. F.Steininger, A.Knorr, T.Stroucken, P.Thomas, S.W.Koch,

    ``Spatial and Temporal Localized Excitation

    of Semiconductor Quantum Wells'' Phys.Rev.Lett. 77, 550 (1996).



  47. F.Steininger, A.Knorr, P.Thomas, and S.W.Koch,

    ``The influence of Electron-Phonon Scattering

    on the Spatio-Temporal Dynamics of Electronic Wave Packets in

    Semiconductor Quantum Wells''

    Zeitschrift für Physik B 103, 45 (1997).



  48. A.Knorr, F.Steininger, and S.W.Koch,

    ``Theory of Optically Nonlinear Effects in the Ultrafast

    Spatio-Temporal Dynamics of Semiconductors ''

    Acta Physica Polonica 92, 641 (1997).



  49. A.Knorr, F.Steininger, B.Hanewinkel, S.Kuckenburg,

    P.Thomas, and S.W.Koch,

    ``Theory of Ultrafast Spatio-Temporal Dynamics

    in Semiconductor Quantum Wells:

    Electronic Wavepackets and Near-Field Optics''

    Phys.Stat.Sol.(b) 206, 139 (1998).



  50. J.Stippler, C.Schlichenmaier, A.Knorr, T.Meier,

    M.Lindberg, P.Thomas, and S.W.Koch,

    ``Current Echos Induced by Coherent Control'',

    Phys.Stat.Sol.(b) 221, 379 (2000).



    Laser materials:



  51. W.W.Chow, A.Knorr and S.W.Koch,

    ``Theory of Laser Gain in Group III-Nitrides''

    Appl.Phys.Lett. 67, 754 (1995).



  52. W.W.Chow, A.Knorr, and S.W.Koch,

    ``Gain of GaN bulk materials''

    Optics and Photonics News 12, 31 (1995).



  53. A.Girndt, F.Jahnke, A.Knorr, W.W.Chow, and S.W.Koch,

    `` Multi-band Bloch Equations and Gain Spectra of Highly Excited

    II-VI Semiconductor Quantum Wells''

    Phys.Stat.Sol.b 202, 725 (1997).



  54. C.Ellmers, M.Hofmann, A.Girndt, A.Knorr,

    W.W.Rühle, F.Jahnke, and S.W.Koch,

    ``Measurements and Calculation of Gain Spectra for

    (InGa)As Single Quantum Well Lasers'',

    Appl.Phys.Lett. 72, 1674 (1998).



  55. C.Ellmers, M.Hofmann, W.W.Rühle, A.Girndt, F.Jahnke, W.W.Chow,

    A.Knorr, and S.W.Koch,

    ``Gain Spectra of an (InGa)As Single Quantum Well Laser Diode'',

    Phys.Stat.Sol.(b) 205, 407 (1998).


    Nearfield optics:



  56. B.Hanewinkel, A.Knorr, P.Thomas, and S.W.Koch,

    ``Optical Near Field Response of

    Semiconductor Quantum Dots''

    Phys.Rev.B 55, 13715 (1997).



  57. A.Knorr, B.Hanewinkel, H.Giessen, and S.W.Koch,

    ``Theory for Semiconductor Near-Field Optics:

    Selection Rules and Spatio-Temporal Dynamics'' in

    Festkörperprobleme 38

    (Advances in Solid State Physics),

    Vieweg, ed. by B.Kramer, p.311 (1999).



  58. G. von Freymann, Th. Schimmel, M.Wegener,

    A.Knorr, B.Hanewinkel, and S.W.Koch,


    Computer Simulations of NSOM:

    Can Subwavelength Resolution be Obtained

    Using Uncoated Fiber Probes


    Appl.Phys.Lett. 73, 1170 (1998).



  59. M.Vollmer, H.Giessen, W.Stolz, W.Rühle, A.Knorr, S.W.Koch

    L.Ghislain, and V.Elings


    Ultrafast Nonlinear Subwavelength

    Solid Immersion spectroscopy at :

    An Alternative to Nonlinear SNOM


    Journal of Microscopy 194, 523 (1999).



  60. B.Hanewinkel, A.Knorr, P.Thomas, and S.W.Koch,


    Near-Field Dynamics of Excitonic Wavepackets

    in Quantum Wells


    Phys.Rev.B 60 , 8975 (1999).



  61. A.von der Heydt, A.Knorr, B.Hanewinkel,

    and S.W.Koch,


    Optical Near-Field Excitation at the Semiconductor Bandedge:

    Field Distributions, Anisotropic

    Transitions and Quadrupole Enhancement


    J. Chem.Phys. 112, 7831 (2000).



  62. A.Knorr, B.Hanewinkel, and S.W.Koch,


    Near-Field Optical Theory of Semiconductor-Nanostructures:

    Polarization Dependence, Local Wavefunction-Mapping and

    Temporal Dynamics


    submitted to Opt.Express (2000).



    Electronic correlations:



  63. A.Knorr, S.Hughes, T.Stroucken and S.W.Koch,

    ``Theory of Spatio-Temporal Effects in

    Semiconductor Heterostructures''

    Chem.Phys. 210, 27 (1996).



  64. S.Hughes, A.Knorr, R.Binder, J.Moloney, S.W.Koch,

    ``The Influence of Electron-Hole Scattering on

    Linear Gain Spectra''

    Solid State Comm. 100, 555 (1996).



  65. W.W.Chow, A.Knorr, S.Hughes, A.Girndt, and S.W.Koch,

    ``Carrier Correlation Effects in Semiconductor Laser Medium''

    IEEE Journ. Quantum Electr. 3, 136 (1997).



  66. S.Hughes, A.Knorr, S.W.Koch,

    ``The Interplay of Pulse Propagation and

    Optical Dephasing in Semiconductors''

    Journ. Opt. Soc. Am. B 14, 754 (1997).



  67. C.Sieh, T.Meier, A.Knorr, F.Jahnke, P.Thomas and S.W.Koch,



    Theoretical Analysis of Differential Spectra

    Including Carrier-Correlations and Disorder


    Eur.Phys.J. B 11, 407 (1999).



  68. S.W.Koch, C.Sieh, T.Meier, F.Jahnke, A.Knorr,

    P.Brick, M.Hübner, C.Ell, J.Prineas, G.Khitrova, H.M.Gibbs,



    Theory of Coherent Effects in Semiconductors


    J.Lumin. 83-84, 1 (1999).






  69. M.Oestreich, D.Hägele, H.C.Schneider, A.Knorr,

    A.Hansch, S.Hallstein, K.H.Schmidt, K.Köhler,

    S.W.Koch, and W.W.Rühle,

    ``Direct observation of the rotational direction

    of electron spin precession in semiconductors'',

    Sol.State.Comm. 108, 753 (1998).



    New light propagation phenomena:



  70. P.A. Harten, A.Knorr, J.P. Sokoloff, F. Brown de Colstoun,

    S.G. Lee, R. Jin, E.M. Wright,

    G. Khitorova, H.M. Gibbs, S.W.

    Koch, and N. Peyghambarian,

    "Propagation-Induced Escape from Adiabatic Following in a


    Phys. Rev. Lett. 9, 852 (1992).



  71. A. Knorr, E.M. Wright, R. Binder, and S.W. Koch,

    "Amplification, Absorption and lossless Propagation of Pulses in

    inverted Semiconductors",

    Opt. Lett. 18, 1528 (1993).



  72. S.Hughes, A.Knorr, S.W.Koch,

    ``Femtosecond Pulse Break-Up in a Semiconductor Amplifier''

    Opt.Lett. 21, 1052 (1996).



  73. H.Giessen, A.Knorr, S.Haas, S.W.Koch, S.Linden,

    J.Kuhl, M.Hetterich, M.Grün and C.Klingshirn,

    `` Self-induced transmission

    on a free exciton resonance in a semiconductor'',

    Phys.Rev.Lett. 81, 4260 (1998).



  74. J.Förstner, A.Knorr,

    and S.W.Koch



    Nonlinear Pulse Propagation in Semiconductors:

    Hole Burning Within a Homogeneous Line


    Phys.Rev.Lett. 86, 476 (2001).



  75. S.Hughes and A.Knorr


    Microscopic Theory of Ultrashort

    Pulse Compression and Break-Up

    in a Semiconductor Optical Amplifier''

    Photon. Tech. Lett. xxx (2001).




    Invited review articles:



  76. R.Binder, Y.Z.Hu, A.Knorr, M.Lindberg, and S.W.Koch,

    "Many Body Theory of Coherent Optical Effects in


    in "Coherent Optical Interactions in Semiconductors", ed. R.T.Philipps,

    NATO ASI Series published by Plenum (1993).



  77. S.W.Koch, T.Stroucken, T.Meier,

    A.Knorr, J.Hader, F.Rossi, and P.Thomas

    ``Coherent Dynamics of Semiconductor Heterostructures''

    in ``Microscopic Theory of Semiconductors'',

    ed. S.W.Koch, published by World Scientific (1995).



  78. A.Knorr and S.W.Koch

    ``Microscopic Modelling of Semiconductors''

    in ``Nonlinear Optical Materials'' , ed. J.V.Moloney and J.Sipe,

    IMA Volumes in Mathematics and its Applications 101,

    ed. J.V.Moloney, Springer (1998).



  79. B.Hanewinkel, A.Knorr, P.Thomas and S.W.Koch


    Near-Field Optics of Nanostructured Semicondutor Materials


    in ``Optics of Nanostructured Materials'' , ed.

    T.F.George and V.A.Markel,

    to be published by Wiley Interscience (2001).



  80. H.Giessen, A.Knorr, J.Kuhl and S.W.Koch


    High Intensity Laser Pulse Propagation

    in Semiconductors


    in Festkörperprobleme 39

    (Advances in Solid State Physics),

    Vieweg, ed. by B.Kramer, p. (2000).





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