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You searched on: Author: edward hagley

Displaying records 11 to 20 of 43 records.
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11. Hybrid quantum-well system for wavelength-channel selection
Published: 7/25/2013
Authors: Lu Deng, Edward W Hagley, Chengjie Zhu
Abstract: We consider a hybrid quantum-well structure consisting of regions whose properties alternate between active Raman gain and electromagnetically induced transparency. We present both analytical and numerical results that indicate a large light be ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913757

12. Highly Efficient Counter-Propagating Narrow-Band Ultraviolet Frequency Conversion in a Quantum Gas
Published: 5/15/2013
Authors: chengjie Zhu, Lu Deng, Edward W Hagley
Abstract: We show that highly efficient ultraviolet frequency up conversion can be established in a single-component quantum gas in the counter-propagating weak pump beam geometry where no frequency up conversion can occur in a normal gas. We also show that al ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913493

13. Light-Wave Mixing in Quantum Gases
Published: 5/1/2013
Authors: Lu Deng, Edward W Hagley, R Q. Wang, Charles W Clark
Abstract: Ninety-five years after Einstein‰s theoretical prediction, we are surrounded in our daily lives by its practical applications. For example, multi-channel telecommunication lasers and even the commonly-used green laser pointers that cost just a fe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912574

14. Fast, Optically Controlled Kerr Phase Shifter for Digital Signal Processing
Published: 4/18/2013
Authors: Runbing Li, Lu Deng, Edward W Hagley, Joshua C Bienfang, Zachary H Levine
Abstract: We demonstrate an optically controlled Kerr phase shifter using a room-temperature Rb85 vapor operating in a Raman gain scheme. Phase shifts from zero to 𝜋 relative to an unshifted reference wave are observed, and gated operations are dem ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913278

15. Fast, All-Optical, Zero to PI Continuously Controllable Kerr Phase Gate
Published: 3/13/2013
Authors: Runbing Li, Lu Deng, Edward W Hagley
Abstract: We demonstrate a fast-responding Kerr phase gate using a room-temperature 85Rb vapor operated in a Raman gain scheme where the probe/signal wave travels ,superluminallyŠ. Continuously controllable nonlinear Kerr phase shift of the probe wave from 0 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912938

16. Effect of atomic coherence on "temporal cloaking" in atomic vapors
Published: 2/27/2013
Authors: Runbing Li, Lu Deng, Edward W Hagley, Joshua C Bienfang, M G Payne, Mo-Lin Ge
Abstract: We discuss a different scheme to achieve temporal cloaking in warm atomic vapors. Instead of creating a temporal-spatial window in a patched broadband short optical pulse using static differential dispersion of an optical fiber, we create a tempo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912400

17. Impact of photo-assisted collisions on superradiant light scattering with Bose-condensates
Published: 10/4/2012
Authors: Lu Deng, Xinyu Luo, Edward W Hagley, Ruquan Wang
Abstract: We present experimental evidence supporting the postulation that the secondary effects of light assisted collisions are the main reason that the superradiant light scattering efficiency in condensates is asymmetric with respect to the sign of the pum ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910984

18. SURF III: A flexible Synchrotron Radiation Source for Radiometry and Research
Published: 9/1/2011
Authors: Uwe Arp, Charles W Clark, Lu Deng, Nadir S. Faradzhev, Alex P. Farrell, Mitchell L. Furst, Steven E Grantham, Edward W Hagley, Shannon Bradley Hill, Thomas B Lucatorto, Ping-Shine Shaw, Charles S Tarrio, Robert Edward Vest
Abstract: The calculability of synchrotron radiation (SR) makes electron storage rings wonderful light sources for radiometry. The broadband nature of SR allows coverage of the whole spectral region from the x-ray to the far-infrared. Compact low-energy storag ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906750

19. Reply to ,Comment on ,Electromagnetic Wave Dynamics in Matter-Wave Superradiant ScatteringŠ by Wolfgang Ketterle
Published: 3/18/2011
Authors: Lu Deng, Edward W Hagley, Marvin G. Payne
Abstract: The comment by W. Ketterle [1] purports having a viable model of superradiance. However, Ref. [1] admits not being able to explain the red/blue pump detuning asymmetry in matter-wave superradiance that was first observed recently by us [2]. It is cle ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906633

20. Observation of the red-blue detuning asymmetry in matter-wave superradiance
Published: 11/23/2010
Authors: Lu Deng, Edward W Hagley, Qiang Cao, Xiaorui Wang, Xinyu Luo, Ruquan Wang, Fan Yang, Xiaoji Zhou, Xuzong Chen, M. G. Payne, Mingsheng Zhan
Abstract: We show the first experimental observations of matter-wave superradiance using blue-detuned light, and demonstrate a pump-laser detuning asymmetry in the collective atomic recoil motion. In contrast to all previous theoretical treatments, which p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905929



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