You searched on: Author: edward hagley
Displaying records 11 to 20 of 43 records.
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11. Hybrid quantum-well system for
Lu Deng, Edward W Hagley, Chengjie Zhu
We consider a hybrid quantum-well structure consisting of regions whose properties alternate
Raman gain and electromagnetically induced transparency. We present both analytical and
numerical results that
indicate a large light be ...
12. Highly Efficient Counter-Propagating Narrow-Band Ultraviolet
Frequency Conversion in a Quantum Gas
chengjie Zhu, Lu Deng, Edward W Hagley
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 ...
13. Light-Wave Mixing in Quantum Gases
Lu Deng, Edward W Hagley, R Q. Wang, Charles W Clark
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 ...
14. Fast, Optically Controlled Kerr Phase Shifter for Digital Signal Processing
Runbing Li, Lu Deng, Edward W Hagley, Joshua C Bienfang, Zachary H Levine
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 ...
15. Fast, All-Optical, Zero to PI Continuously Controllable Kerr Phase Gate
Runbing Li, Lu Deng, Edward W Hagley
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 ...
16. Effect of atomic coherence on "temporal cloaking" in atomic vapors
Runbing Li, Lu Deng, Edward W Hagley, Joshua C Bienfang, M G Payne, Mo-Lin Ge
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 ...
17. Impact of photo-assisted collisions on superradiant light scattering with Bose-condensates
Lu Deng, Xinyu Luo, Edward W Hagley, Ruquan Wang
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 ...
18. SURF III: A flexible Synchrotron Radiation Source for Radiometry and Research
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
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 ...
19. Reply to ,Comment on ,Electromagnetic Wave Dynamics in Matter-Wave Superradiant ScatteringŠ by Wolfgang Ketterle
Lu Deng, Edward W Hagley, Marvin G. Payne
The comment by W. Ketterle  purports having a viable model of superradiance. However, Ref.  admits not being able to explain the red/blue pump detuning asymmetry in matter-wave superradiance that was first observed recently by us . It is cle ...
20. Observation of the red-blue detuning asymmetry in matter-wave superradiance
Lu Deng, Edward W Hagley, Qiang Cao, Xiaorui Wang, Xinyu Luo, Ruquan Wang, Fan Yang, Xiaoji Zhou, Xuzong Chen, M. G. Payne, Mingsheng Zhan
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.
contrast to all previous theoretical treatments, which p ...