Abstract

We report room temperature demonstration of slow light propagation via coherent population oscillation (CPO) in a GaAs quantum well waveguide. Measurements of the group delay of an amplitude modulated signal resonant with the heavy-hole exciton transition reveal delays as long as 830 ps. The measured bandwidth, which approaches 100 MHz, is related to the lifetime of the photoexcited electron-hole (e-h) plasma as expected for a CPO process.

© 2005 Optical Society of America

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  1. C. J. Chang-Hasnain , P. C. Ku , J. Kim , and S. L. Chuang , “ Variable Optical Buffer Using Slow Light in Semiconductor Nanostructures ,” in Proceedings of the IEEE Conference on Special Issue on Nanoelectronics and Nanoscale Processing ( 2003 ), pp. 1884 – 1897 .
  2. M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Observation of Ultraslow Light Propagation in a Ruby Crystal at Room Temperature ,” Phys. Rev. Lett.   90 , 113903 ( 2003 ).
    [Crossref] [PubMed]
  3. L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
    [Crossref]
  4. P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
    [Crossref] [PubMed]
  5. P. Palinginis and H. Wang , “ Coherent Raman resonance from electron spin coherence in GaAs quantum wells ,” Phys. Rev. B   70 , 153007 ( 2004 ).
    [Crossref]
  6. S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
    [Crossref]
  7. P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
    [Crossref]
  8. D. S. Chemla and D. A. B. Miller , “ Room-temperature excitonic nonlinear-optical effects in semiconductor quantum-well structures ,” J. Opt. Soc. Am. B   2 , p 1155 ( 1985 ).
    [Crossref]
  9. M. Sargent , “ Spectroscopic techniques based on Lamb’s laser theory ,” Phys. Rep.   43 , 223 ( 1978 ).
    [Crossref]
  10. M. S. Bigelow , N. N. Lepeshkin , and R.W. Boyd , “ Ultra-slow and superluminal light propagation in solids at room temperature ,” J. Cond. Matt. Phys.   16 , 1321 ( 2004 ).
    [Crossref]
  11. H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
    [Crossref]
  12. Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
    [Crossref]
  13. D. Dahan and G. Eisenstein , “ Tunable all-optical delay via slow and fast light propagation in a Raman assisted fiber optical parametric amplifier: a route to all-optical buffering ,” Opt. Express   13 , 6234 ( 2005 )
    [Crossref] [PubMed]

2005 (3)

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

D. Dahan and G. Eisenstein , “ Tunable all-optical delay via slow and fast light propagation in a Raman assisted fiber optical parametric amplifier: a route to all-optical buffering ,” Opt. Express   13 , 6234 ( 2005 )
[Crossref] [PubMed]

2004 (3)

M. S. Bigelow , N. N. Lepeshkin , and R.W. Boyd , “ Ultra-slow and superluminal light propagation in solids at room temperature ,” J. Cond. Matt. Phys.   16 , 1321 ( 2004 ).
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

P. Palinginis and H. Wang , “ Coherent Raman resonance from electron spin coherence in GaAs quantum wells ,” Phys. Rev. B   70 , 153007 ( 2004 ).
[Crossref]

2003 (1)

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Observation of Ultraslow Light Propagation in a Ruby Crystal at Room Temperature ,” Phys. Rev. Lett.   90 , 113903 ( 2003 ).
[Crossref] [PubMed]

1999 (2)

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

1990 (1)

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

1985 (1)

1978 (1)

M. Sargent , “ Spectroscopic techniques based on Lamb’s laser theory ,” Phys. Rep.   43 , 223 ( 1978 ).
[Crossref]

Adachi, T.

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

Behroozi, C. H.

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Bhattacharya, P. K.

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Bigelow, M. S.

M. S. Bigelow , N. N. Lepeshkin , and R.W. Boyd , “ Ultra-slow and superluminal light propagation in solids at room temperature ,” J. Cond. Matt. Phys.   16 , 1321 ( 2004 ).
[Crossref]

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Observation of Ultraslow Light Propagation in a Ruby Crystal at Room Temperature ,” Phys. Rev. Lett.   90 , 113903 ( 2003 ).
[Crossref] [PubMed]

Binder, R.

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

Boyd, R. W.

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Observation of Ultraslow Light Propagation in a Ruby Crystal at Room Temperature ,” Phys. Rev. Lett.   90 , 113903 ( 2003 ).
[Crossref] [PubMed]

Boyd, R.W.

M. S. Bigelow , N. N. Lepeshkin , and R.W. Boyd , “ Ultra-slow and superluminal light propagation in solids at room temperature ,” J. Cond. Matt. Phys.   16 , 1321 ( 2004 ).
[Crossref]

Chang, S. W.

Chang-Hasnain, C. J.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

C. J. Chang-Hasnain , P. C. Ku , J. Kim , and S. L. Chuang , “ Variable Optical Buffer Using Slow Light in Semiconductor Nanostructures ,” in Proceedings of the IEEE Conference on Special Issue on Nanoelectronics and Nanoscale Processing ( 2003 ), pp. 1884 – 1897 .

Chemla, D. S.

Chuang, S. L.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

C. J. Chang-Hasnain , P. C. Ku , J. Kim , and S. L. Chuang , “ Variable Optical Buffer Using Slow Light in Semiconductor Nanostructures ,” in Proceedings of the IEEE Conference on Special Issue on Nanoelectronics and Nanoscale Processing ( 2003 ), pp. 1884 – 1897 .

Crankshaw, S.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

Dahan, D.

Dutton, Z.

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Eisenstein, G.

Harris, S. E.

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Hau, L. V.

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Kim, E.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

Kim, J.

C. J. Chang-Hasnain , P. C. Ku , J. Kim , and S. L. Chuang , “ Variable Optical Buffer Using Slow Light in Semiconductor Nanostructures ,” in Proceedings of the IEEE Conference on Special Issue on Nanoelectronics and Nanoscale Processing ( 2003 ), pp. 1884 – 1897 .

Ku, P. C.

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

C. J. Chang-Hasnain , P. C. Ku , J. Kim , and S. L. Chuang , “ Variable Optical Buffer Using Slow Light in Semiconductor Nanostructures ,” in Proceedings of the IEEE Conference on Special Issue on Nanoelectronics and Nanoscale Processing ( 2003 ), pp. 1884 – 1897 .

Kwong, N. H.

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

Lepeshkin, N. N.

M. S. Bigelow , N. N. Lepeshkin , and R.W. Boyd , “ Ultra-slow and superluminal light propagation in solids at room temperature ,” J. Cond. Matt. Phys.   16 , 1321 ( 2004 ).
[Crossref]

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Observation of Ultraslow Light Propagation in a Ruby Crystal at Room Temperature ,” Phys. Rev. Lett.   90 , 113903 ( 2003 ).
[Crossref] [PubMed]

Li, T.

Matsukura, F.

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

Miller, D. A. B.

Moewe, M.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

Oh, J.

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Ohno, H.

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

Ohno, Y.

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

Palinginis, P.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

P. Palinginis and H. Wang , “ Coherent Raman resonance from electron spin coherence in GaAs quantum wells ,” Phys. Rev. B   70 , 153007 ( 2004 ).
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

Pamulapati, J.

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Remillard, J. T.

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Sargent, M.

M. Sargent , “ Spectroscopic techniques based on Lamb’s laser theory ,” Phys. Rep.   43 , 223 ( 1978 ).
[Crossref]

Sarkar, S.

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

Sedgwick, F.

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

Steel, D. G.

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Terauchi, R.

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

Wang, H.

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

P. Palinginis and H. Wang , “ Coherent Raman resonance from electron spin coherence in GaAs quantum wells ,” Phys. Rev. B   70 , 153007 ( 2004 ).
[Crossref]

P. C. Ku , F. Sedgwick , C. J. Chang-Hasnain , P. Palinginis , T. Li , H. Wang , S. W. Chang , and S. L. Chuang , “ Slow light in semiconductor quantum wells ,” Opt. Lett.   29 , 2291 ( 2004 ).
[Crossref] [PubMed]

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Webb, M. D.

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Appl. Phys. Lett. (1)

P. Palinginis , S. Crankshaw , F. Sedgwick , E. Kim , M. Moewe , C. J. Chang-Hasnain , H. Wang , and S. L. Chuang , “ Ultraslow light (< 200 m/s) propagation in a semiconductor nanostructure ,” Appl. Phys. Lett.   87 , 111702 ( 2005 )
[Crossref]

J. Cond. Matt. Phys. (1)

M. S. Bigelow , N. N. Lepeshkin , and R.W. Boyd , “ Ultra-slow and superluminal light propagation in solids at room temperature ,” J. Cond. Matt. Phys.   16 , 1321 ( 2004 ).
[Crossref]

J. Opt. Soc. Am. B (1)

Nature (1)

L. V. Hau , S. E. Harris , Z. Dutton , and C. H. Behroozi , “ Light speed reduction to 17 m/s in an ultracold atomic gas ,” Nature   397 , 594 – 598 ( 1999 ).
[Crossref]

Opt. Express (1)

Opt. Lett. (1)

Phys. Rep. (1)

M. Sargent , “ Spectroscopic techniques based on Lamb’s laser theory ,” Phys. Rep.   43 , 223 ( 1978 ).
[Crossref]

Phys. Rev. B (2)

P. Palinginis and H. Wang , “ Coherent Raman resonance from electron spin coherence in GaAs quantum wells ,” Phys. Rev. B   70 , 153007 ( 2004 ).
[Crossref]

S. Sarkar , P. Palinginis , P. C. Ku , C. J. Chang-Hasnain , N. H. Kwong , R. Binder , and H. Wang , “ Inducing electron spin coherence in GaAs quantum well waveguides: Spin coherence without spin precession ,” Phys. Rev. B   72 , 35343 ( 2005 ).
[Crossref]

Phys. Rev. Lett. (2)

M. S. Bigelow , N. N. Lepeshkin , and R. W. Boyd , “ Observation of Ultraslow Light Propagation in a Ruby Crystal at Room Temperature ,” Phys. Rev. Lett.   90 , 113903 ( 2003 ).
[Crossref] [PubMed]

Y. Ohno , R. Terauchi , T. Adachi , F. Matsukura , and H. Ohno , “ Spin relaxation in (110) GaAs quantum wells ,” Phys. Rev. Lett.   83 , 4196 ( 1999 ).
[Crossref]

Surf. Sci. (1)

H. Wang , J. T. Remillard , M. D. Webb , D. G. Steel , J. Pamulapati , J. Oh , and P. K. Bhattacharya , “ High-resolution laser spectroscopy of relaxation and the excitation lineshape of excitons in GaAs quantum well structures ,” Surf. Sci.   228 , 69 ( 1990 ).
[Crossref]

Other (1)

C. J. Chang-Hasnain , P. C. Ku , J. Kim , and S. L. Chuang , “ Variable Optical Buffer Using Slow Light in Semiconductor Nanostructures ,” in Proceedings of the IEEE Conference on Special Issue on Nanoelectronics and Nanoscale Processing ( 2003 ), pp. 1884 – 1897 .

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Figures (3)

Fig. 1.
Fig. 1.

Top. transmission spectrum from the L = 440 μm long QW WG sample. The spectrum was recorded with the AM switched off. The inset shows a schematic of the setup. HH and LH exciton absorption resonances are clearly resolved in the absorption spectrum shown in the bottom graph. Arrows indicate the spectral position for the on- and off-resonant conditions used in the measurements of group delay induced via CPO at the HH-exciton transition.

Fig. 2.
Fig. 2.

(a) Generic example of two modulation traces recorded on- and off- resonance (f = 100 MHz and P = 75 mW). The trace obtained on-resonance with the HH-excition transition is delayed. (b) Delay as a function of modulation frequency for P = 25, 50, 75 mW input power. Solid lines are Lorentzian fits. The inset shows the power dependence of the FWHM as obtained from the numerical fits.

Fig. 3.
Fig. 3.

Power dependence of the fractional delay for various modulation frequencies demonstrating optical control over the group delay.

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