Results 61 to 70 of about 189,479 (217)

Optical Frequency Self Sabilization in a Couple of Optoelectronic Oscillator [PDF]

, 2010
Methods and devices for a coupled optoelectronic oscillator having optical frequency stabilization. The coupled optoelectronic oscillator includes a harmonically mode-locked laser cavity having a Mach-Zehnder modulator for mode-locking and an intracavity
Delfyett, Peter, Ozharar, Sarper, Gee, Sangyoun, Quinlan, Franklyn   +3 more
core  

Bright‐Dark Exciton Splitting in Lead Iodide Perovskite Crystals Accessed via Quantum Beats in Photon Echoes

Advanced Optical Materials, EarlyView.
Understanding exciton fine structure is crucial for optoelectronic and quantum photonic applications of lead halide perovskites. It is demonstrated that polarization‐sensitive photon‐echo spectroscopy in a magnetic field resolves exciton fine‐structure splittings hidden by inhomogeneous broadening, enabling direct determination of the bright‐dark ...
M. Alex Hollberg, Mikhail O. Nestoklon, Artur V. Trifonov, Stefan Grisard, Oleh Hordiichuk, Dmitry N. Dirin, Maksym V. Kovalenko, Dmitri R. Yakovlev, Manfred Bayer, Ilya A. Akimov   +9 more
wiley   +1 more source

Hybridization of Gap Plasmons and Grating‐Coupled Surface Plasmon Polaritons in Metal Nanoparticle Cluster Arrays on a Mirror

Advanced Optical Materials, EarlyView.
Here we use a template‐assisted self‐assembly approach of metal colloids onto metal films to produce hybrid plasmonic metasurfaces that integrate nanoparticle‐on‐mirror cavities with periodic metal colloid arrays. The resulting coupling between gap plasmons and grating‐coupled surface plasmon polaritons enables programmable hybrid modes with tailored ...
Afroditi Koutsogianni, Xiaoyu Qi, Jose Mendoza‐Carreño, Pedro Moronta, Maria Isabel Alonso, David B. Amabilino, Agustín Mihi   +6 more
wiley   +1 more source

Optoelectronic recirculating delay line implementation of a high-q optoelectronic oscillator [PDF]

, 2017
A dual-loop optoelectronic oscillator incorporating an optoelectronic recirculating delay line in order to circumvent the limitations of optical coherence associated with all-optical loops is demonstrated.
Charalambous, G, Hasanuzzaman, GKM, Perentos, A, Iezekiel, S   +3 more
core   +1 more source

Photonic Microwave Waveforms Generation Based on Frequency and Time-Domain Synthesis

IEEE Access, 2018
In this paper, a novel photonic microwave waveform generation method with both frequency-domain synthesis (FDS) and time-domain synthesis (TDS) is proposed, for the first time to the best of our knowledge, by using cascaded modulation and an ...
Tingwei Wu, Chongfu Zhang, Heng Zhou, Haishan Huang, Kun Qiu   +4 more
doaj   +1 more source

An Etalon based Optoelectronic Oscillator

, 2010
A 10.287 GHz optoelectronic oscillator is demonstrated which uses a 1000 finesse Fabry-Perot etalon as the mode selector instead of an RF filter. The new OEO has higher RF frequency stability and lower phase noise.
Nazanin Hoghooghi, Peter J. Delfyett, Mehmetcan Akbulut, Hoghooghi, Nazanin, Akbulut, Mehmetcan, Dimitrios Mandridis, Mandridis, Dimitrios, Mohammad U. Piracha, Ozdur, Ibrahim, Piracha, Mohammad U., Ibrahim Ozdur   +10 more
core   +1 more source

An On‐Demand Neuromorphic Vision System Enabled by a Multi‐Paradigm Neuromorphic Device and Hierarchical Reconfigurability Designed from Device to System Level

Advanced Science, EarlyView.
An on‐demand ultra‐reconfigurable intelligent vision system with hierarchical reconfigurability from device to system levels is demonstrated. Through co‐design of a multi‐paradigm device, reconfigurable circuits, and adaptive system architecture/algorithms, the system enables seamless switching among spiking, non‐spiking, neuromorphic imaging (NI), and
Biyi Jiang, Jiayi Xu, Liang Ran, Xinhe Feng, Khalil Harrabi, Yida Li, Longyang Lin, Feichi Zhou   +7 more
wiley   +1 more source

Coupled Dual-Loop Optoelectronic Oscillator Based on Stimulated Brillouin Scattering

Applied Sciences, 2019
A tunable optoelectronic oscillator (TOEO) with coupled dual-loop (CDL) based on stimulated Brillouin scattering (SBS) is proposed. In our scheme, the CDL is constructed by cascading a dual-output Mach−Zehnder intensity modulator (DOMZM) and a ...
Feng Fan, Wenwu Zhu, Jiabin Wang, Jingjing Hu, Yiying Gu, Zhenlin Wu, Xiuyou Han, Mingshan Zhao   +7 more
doaj   +1 more source

Microresonator Dissipative Kerr Solitons Synchronized to an Optoelectronic Oscillator

, 2022
Using phase-modulation-induced potential gradient whose period is synchronized to a microwave optoelectronic oscillator, dissipative Kerr solitons generated in a crystalline optical microresonator are trapped by the soliton tweezing effect, exhibiting a ...
Weng, W., Kaszubowska-Anandarajah, A., He, J., Kippenberg, T.J., Anandarajah, P.M.   +4 more
core   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

Advanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin, Cheng‐Wei Lee, Nate S.P. Bernstein, Thi Nguyen, Ande Bryan, Eli Cooper, John S. Mangum, Sage R. Bauers, Andriy Zakutayev, Keisuke Yazawa, Prashun Gorai, Rebecca W. Smaha   +11 more
wiley   +1 more source