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You searched on: Author: Edward Hagley

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1. Polarization selective Kerr phase shift method for photonic quantum controlled-NOT and polarization gates
Published: 12/30/2014
Authors: C. J. Zhu, Lu Deng, Edward W Hagley
Abstract: We propose a photonic CNOT gate and a polarization gate using a polarization-selective-kerrphase- shift scheme. Using the demonstrated continuous Kerr phase shifting technique we selectively write a π phase shift to one of the circularly polar ...

2. 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 ...

3. High-Fidelity, Weak-Light Polarization Gate for Quantum Information Systems
Published: 6/8/2014
Authors: Lu Deng, Runbing Li, Chengjie Zhu, Edward W Hagley
Abstract: Using a Polarization-Selective-Kerr-Phase-Shift technique we demonstrate an all-optical polarization gate in an atomic gain medium with the control-field intensity equivalent to 20 photons of 10 nanoseconds propagating in a 5-μm mode diameter ph ...

4. Highly-Efficient, Broadband Coherent Surface-Mixing-Wave Generation using Amplified Surface Plasmonic Waves
Published: 5/21/2014
Authors: C. J. Zhu, X Zhao, G. X. Huang, Lu Deng, Edward W Hagley
Abstract: We show that coherent broadband surface mixing-wave (SMW) can be very efficiently generated near a metallic surface abutting a quasi-three-level gain medium. The generation process is significantly enhanced by the surface plasmonic wave (SPW) that i ...

5. Suppression of Directional Light-Wave Mixing in Normal and Quantum Gases
Published: 10/30/2013
Authors: Lu Deng, Chengjie Zhu, Edward W Hagley, W R Garrett
Abstract: We discuss nonlinear optical processes in the presence of quantum gases. We show that in contrast to a normal gas where the medium ,passivelyŠ participates in nonlinear optical processes, quantum gases ,activelyŠ interact with the wave mixing proce ...

6. Optical ,CloakingŠ Using Alternate Raman Gain and Free-Space Media in the Presence of Spatially-Distributed Pump Fields
Published: 10/22/2013
Authors: Chengjie Zhu, Lu Deng, Edward W Hagley, Mo-Lin Ge
Abstract: We discuss an optical ,cloakingŠ scheme using three three-level active Raman gain systems in tandem in the presence of a spatially distributed pump field. Using eikonal approximation we first derive the analytical expression of the deflection angle ...

7. 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 ...

8. 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 ...

9. 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 a large and fast-responding nonlinear Kerr phase shift using a room-temperature 85Rb vapor operated in a Raman gain scheme where the signal wave travels ,superluminallyŠ. Phase shifts of zero to π in comparison with a reference ...

10. 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 ...

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