Results 91 to 100 of about 61,321 (227)

Dynamics of Entanglement between a Quantum Dot Spin Qubit and a Photon Qubit inside a Semiconductor High-Q Nanocavity

Advances in Mathematical Physics, 2010
We investigate in this paper the dynamics of entanglement between a QD spin qubit and a single photon qubit inside a quantum network node, as well as its robustness against various decoherence processes.
Hubert Pascal Seigneur, Gabriel Gonzalez, Michael Niklaus Leuenberger, Winston Vaughan Schoenfeld   +3 more
doaj   +1 more source

Optical Behavior Analysis of Negative Wavelength Detuning in SMFP-LD and Its Effect on Multi-RF Generation

IEEE Photonics Journal, 2019
Injection locking with positive wavelength detuning has been used for a long time for optical signal processing, signal generation, and computing. Recently a new technique, “injection locking with negative wavelength detuning,” has been ...
Hao Chen, Bikash Nakarmi, M. Rakib Uddin, Shilong Pan   +3 more
doaj   +1 more source

Observation of narrow fluorescence from doubly driven four-level atoms at room temperature

, 2004
Unusually narrow fluorescence peaks are seen from Rubidium-85 atoms under the action of two driving laser fields that are in a three dimensional molasses configuration.
Kamaraju, N., Khan, Uday Kumar, Narayanan, Andal, Ramachandran, Hema, Sebastian, Jimmy, Srinivasan, R.   +5 more
core   +1 more source

Wafer Scale III‐Nitride Deep‐Ultraviolet Vertical‐Cavity Surface‐Emitting Lasers Featuring Nanometer‐Class Control of Cavity Length

Advanced Science, EarlyView.
A DUV‐VCSEL strategy featuring the nanometer‐class control of the cavity length is proposed in the DUV optoelectronic framework based on GaN templates. After the sapphire removal, a self‐terminated etching technology is developed, whereby the cavity length can be accurately determined by epitaxy instead of the fabrication process. As such, a record low
Chen Ji, Jiaming Wang, Fujun Xu, Lisheng Zhang, Jing Lang, Ziyao Zhang, Fuyun Tan, Chengzhi Ji, Junchuan Zhang, Erfei Zhang, Xiangning Kang, Zhixin Qin, Guangxu Ju, Jiejun Wu, Xuelin Yang, Ning Tang, Xinqiang Wang, Weikun Ge, Bo Shen   +18 more
wiley   +1 more source

Observation of a red-blue detuning asymmetry in matter-wave superradiance

, 2010
We report the first experimental observations of strong suppression of matter-wave superradiance using blue-detuned pump light and demonstrate a pump-laser detuning asymmetry in the collective atomic recoil motion. In contrast to all previous theoretical
Cao, Qiang, Chen, Xuzong, Deng, L., Hagley, E. W., Luo, Xinyu, Payne, M. G., Wang, Ruquan, Wang, Xiaorui, Yang, Fan, Zhan, Mingsheng, Zhou, Xiaoji   +10 more
core   +1 more source

Non‐Volatile Phase Modulation with Ultralow Energy Consumption Enabled by 2D Ferroelectric/TMD Heterostructures

Advanced Science, EarlyView.
We demonstrate a hybrid WS2/CuInP2S6/graphene heterostructure integrated on a silicon nitride microring resonator for non‐volatile optical phase modulation with ultra‐low energy consumption and low insertion loss. While CIPS alone does not provide efficient optical index modulation, the engineered proposed device structure converts ferroelctric domain ...
Lalit Singh, Shi Guo, Yuhui Yang, Sholehin Juperi, Rui Yu, Xiangxin Gong, Jeremy Leong, Sung‐Gyu Lee, Qingyun Wu, Lay Kee Ang, Sang Hoon Chae   +10 more
wiley   +1 more source

Emerging Device Applications From Strong Light–Matter Interactions in 2D Materials

Advanced Science, EarlyView.
Two‐dimensional semiconductors enable extremely compact optoelectronic devices such as solar cells, sensors, LEDs, and lasers. Their strong light–matter interactions allow efficient light emission, detection, and energy conversion. This review article discusses the recent progress in integrating these materials with optical cavities and nanostructures ...
Janani Archana K, Kumar Shwetabh, Reyas Ali, Ramji Velayutham, Koustav Das, Abhishek Mondal, Prashant Kumar, Surendra B. Anantharaman   +7 more
wiley   +1 more source

Editorial: Why the exact frequencies in our brains matter: Perspectives from electrophysiology and brain stimulation

Frontiers in Systems Neuroscience, 2023
Avgis Hadjipapas, Avgis Hadjipapas, Charalambos C. Charalambous, Charalambos C. Charalambous, Mark J. Roberts   +4 more
doaj   +1 more source

Liquid Metals in Radio Frequency Applications: A Review of Physics, Manufacturing, and Emerging Technologies

Advanced Electronic Materials, EarlyView.
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley   +1 more source

Cooperative atomic scattering of light from a laser with a colored noise spectrum

, 2009
The collective atomic recoil lasing is studied for an ultra-cold and collisionless atomic gas in a partially coherent pump with a colored noise. Compared to white noise, correlations in colored noise are found to be able to greatly enhance or suppress ...
Zhou, Xiaoji
core   +1 more source