Results 51 to 60 of about 18,522 (248)

Ultra-low phase noise all-optical microwave generation setup based on commercial devices [PDF]

open access: yes, 2015
In this paper, we present a very simple design based on commercial devices for the all-optical generation of ultra-low phase noise microwave signals.
Bigler, E.   +7 more
core   +2 more sources

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

open access: yesAdvanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya   +22 more
wiley   +1 more source

O-Band Frequency-Tunable (10–22 GHz) Ultra-Low Timing-Jitter (<12-fs) Regenerative Mode-Locked Laser

open access: yesPhotonics, 2022
A frequency-tunable and low-timing-jitter O-band regenerative mode-locked laser (RMLL) using an optoelectronic oscillation configuration and electric-controlled yttrium iron garnet (YIG) bandpass filter is proposed and demonstrated.
Hefei Qi   +4 more
doaj   +1 more source

Optical mini-disk resonator integrated into a compact optoelectronic oscillator

open access: yes, 2009
Original de l'article en libre accès sur le site d'Acta Polonica Physica A http://przyrbwn.icm.edu.pl/APP/SPIS/a116-4.html au lien suivant: http://przyrbwn.icm.edu.pl/APP/PDF/116/a116z465.pdfInternational audienceThis work consists in the design ...
Féron, Patrice   +6 more
core   +3 more sources

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

open access: yesAdvanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Observation of Two‐Photon Resonant Raman Scattering via the Biexciton Level in Two‐Dimensional Halide Perovskite (C6H5C2H4NH3)2PbI4

open access: yesAdvanced Functional Materials, EarlyView.
Efficient two‐photon resonant Raman scattering (TRRS) is observed in the layered perovskite (PEA)2PbI4, with the biexciton level acting as an intermediate state. TRRS undergoes two‐photon frequency shift upon input frequency tuning, persists up to 90 K, and shows clear threshold behavior and polarization selection rules.
Seung Han Shin   +7 more
wiley   +1 more source

Stochastic Analysis of Miniature Optoelectronic Oscillators Based on Whispering-Gallery Mode Electrooptical Modulators

open access: yesIEEE Photonics Journal, 2021
We propose a theoretical analysis of the stochastic dynamics of miniature optoelectronic oscillators (OEOs) based on whispering-gallery mode resonators.
Helene Nguewou-Hyousse, Yanne K. Chembo
doaj   +1 more source

Normalized boundary value problems in the model of optoelectronic oscillator delayed [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2020
Purpose of this work is reduction of differential-difference-model of optic-electronic oscillator to more simple normalized boundary value problems. We study the dynamics of an optoelectronic oscillator with delayed feedback in the vicinity of the zero ...
Grigoreva, Elena Viktorovna   +1 more
doaj   +1 more source

Science and applications of wafer-scale crystalline carbon nanotube films prepared through controlled vacuum filtration [PDF]

open access: yes, 2018
Carbon nanotubes (CNTs) make an ideal one-dimensional (1D) material platform for the exploration of exotic physical phenomena under extremely strong quantum confinement.
Gao, Weilu, Kono, Junichiro
core   +2 more sources

Progress in Optoelectronic Oscillators

open access: yesJournal of Institute of Science and Technology, 2019
An optoelectronic oscillator (OEO) generates a spectrally pure and ultra-stable radio frequency signal from a continuous wave laser source (Yao et al. 2004). In a conventional electrical oscillator, the energy storage capacity is limited, which compromises stability of the signal.
Jay Sharping   +2 more
openaire   +2 more sources

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