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1. A Dynamic, Ultra-Slow Optical-Matter Wave Analog of Event Horizon
Published: 8/28/2014
Authors: C. J. Zhu, Lu Deng, Edward W Hagley, Mo-Lin Ge
Abstract: We investigate effects of a dynamically increasing medium index to optical-wave propagation in a rubidium condensate. A long pulsed pump lasaer coupling a D2 line transition produces a rapidly-growing internally-generated field. This results in a s ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915962

2. A Fast-Responding Nonlinear Phase Shifter Using an Active Raman Gain Core
Published: 4/22/2008
Authors: Lu Deng, Edward W Hagley, Kaijun Jiang, M Payne
Abstract: Using a lifetime broadened N-scheme with an active-Raman-gain (ARG) Lambda core, we show that large nonlinear phase shift can be induced without signal wave attenuation. The new scheme is not based on the ultra-slow-wave technique and it does not ex ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840272

3. A Green Laser Pointer Hazard
Series: Technical Note (NIST TN)
Report Number: 1668
Published: 8/2/2010
Authors: Jemellie Galang, Alessandro Restelli, Edward W Hagley, Charles W Clark
Abstract: An inexpensive green laser pointer was found to emit 20 mW of infrared radiation during normal use. This is potentially a serious hazard that would not be noticed by most users of such pointers. We find that the problem derives from an unsafe desig ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906138

4. A High Speed Quantum Communication Testbed
Published: 1/1/2002
Authors: Carl J Williams, X Tang, M Hiekkero, J Rouzaud, R Lu, A Goedecke, Alan L Migdall, A Mink, A Nakassis, Leticia S Pibida, J Wen, Edward W Hagley, Charles W Clark
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104806

5. A Well Collimated Quasi-Continuous Atom Laser
Published: 3/1/1999
Authors: Edward W Hagley, Lu Deng, M M Kozuma, J Wen, Kristian Helmerson, S L. Rolston, William D Phillips
Abstract: We demonstrate extraction of sodium atoms from a trapped Bose-Einstein condensate (BEC) using a coherent stimulated Raman process. Optical Raman pulses drive transitions between trapped and untrapped magnetic sublevels so as to give the output coupl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840347

6. Coherence Properties of an Atom Laser
Published: 1/1/2000
Authors: M Trippenbach, Y B Band, M Edwards, M R Doery, Paul S Julienne, Edward W Hagley, Lu Deng, M M Kozuma, Kristian Helmerson, S L. Rolston, William D Phillips
Abstract: We study the coherence properties of an atom laser, which operates by extracting atoms from a gaseous Bose-Einstein condensate via a two-photon Raman process, by analyzing a recent experiment [(Hagley et al., submitted to Phys. Rev. Lett. (1999)]. W ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840352

7. Coherent Splitting of Bose-Einstein Condensed Atoms With Optically Induced Bragg Diffraction
Published: 2/1/1999
Authors: M M Kozuma, Lu Deng, Edward W Hagley, J Wen, R Lutwak, Kristian Helmerson, S L. Rolston, William D Phillips
Abstract: We exposed Bose-Einstein condensed sodium atoms to a traveling periodic optical potential and observed coherent splitting of the condensate due to Bragg diffraction. Using the momentum selectivity of the scattering, we were able to separate a compon ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840348

8. Dynamic Onset of Feynman Relation in the Phonon Regime
Published: 5/9/2016
Authors: Lu Deng, Edward W Hagley, Yan Li, Chengjie Zhu
Abstract: The Feynman relation 1, a much celebrated condensed matter physics gemstone for more than 70 years, predicts that the density excitation spectrum and structure factor of a condensed Bosonic system in the phonon regime drops linear and continuousl ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=920381

9. Dynamic light deflection in an active Raman-gain medium using a spatially inhomogeneous pump
Published: 7/25/2013
Authors: Lu Deng, Edward W Hagley, Chengjie Zhu
Abstract: We study optical wave deflection in a three-level active Raman gain medium using a spatially inhomogeneous pump field. Using the eikonal approximation, we derive an analytical expression for the deflection angle and demonstrate more than an ord ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913785

10. 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



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