Results 41 to 50 of about 2,848,759 (416)

Single-Photon Vibrometry [PDF]

open access: yes, 2021
We propose and demonstrate a single-photon sensitive technique for optical vibrometry. It uses high speed photon counting to sample the modulated backscattering from a vibrating target. Designed for remote vibration sensing with ultralow photon flux, we show that this technique can detect small displacements down to 110 nm and resolve vibration ...
arxiv   +1 more source

All-optical manipulation of photonic membranes [PDF]

open access: yesOptics Express, 2016
We demonstrate the all-optical manipulation of polymeric membranes in microfluidic environments. The membranes are decorated with handles for their use in holographic optical tweezers systems. Our results show that due to their form factor the membranes present a substantial increase in their mechanical stability, respect to micrometric dielectric ...
Askari, Meisam   +3 more
openaire   +10 more sources

Active thermal-fuse for stopping blue light leakage of white light-emitting diodes driven by constant current

open access: yesScientific Reports, 2022
In this study, we proposed and demonstrated a circuit design for solving problems related to blue light leakage (e.g., eye damage) when phosphor-converted white light-emitting diodes (pcW-LEDs) overheat.
Ching-Cherng Sun   +6 more
doaj   +1 more source

Advances and applications on non-Hermitian topological photonics

open access: yesNanophotonics, 2023
Non-Hermitian photonics and topological photonics, as new research fields in optics, have attracted much attention in recent years, accompanying by a great deal of new physical concepts and novel effects emerging.
Yan Qiuchen   +7 more
doaj   +1 more source

Strongly correlated photons on a chip [PDF]

open access: yesA. Reinhard, T. Volz, et al. Nature Photonics 6, 93-96 (2012), 2011
Optical non-linearities at the single-photon level are key ingredients for future photonic quantum technologies. Prime candidates for the realization of strong photon-photon interactions necessary for implementing quantum information processing tasks as well as for studying strongly correlated photons in an integrated photonic device setting are ...
arxiv   +1 more source

Antireflection of optical anisotropic dielectric metasurfaces

open access: yesScientific Reports, 2023
We propose a hetero-nano-fin structure to further improve the efficiency of Pancharatnam–Berry phase metasurfaces. Two hetero-nano-fin types, MgF2/GaN and MgF2/Nb2O5, were investigated.
Yu-Hsuan Liao   +3 more
doaj   +1 more source

EON, Vol. 03, No. 01 [PDF]

open access: yes, 2015
Winter 2015 News and notes from the University of Dayton Electro-Optics Graduate Program.https://ecommons.udayton.edu/eop_newsletter/1006/thumbnail ...
University of Dayton. Electro-Optics and Photonics Program
core   +4 more sources

Double-frequency grating shearing interferometer with built-in phase-shifting function for robust multi-level phase retrieval

open access: yesScientific Reports, 2022
In this paper, we propose and demonstrate a novel interferometer and signal process to retrieve two-dimensional signals with multilevel phases. The interferometer is based on a shearing interferometry with double-frequency grating, and phase-shifting ...
Yeh-Wei Yu   +3 more
doaj   +1 more source

Electro-optic and magneto-optic photonic devices based on multilayer photonic structures

open access: yesJournal of Photonics for Energy, 2018
In this work we describe different types of photonic structures that allow tunability of the photonic band gap upon the application of external stimuli, as the electric or magnetic field. We review and compare two porous 1D photonic crystals: in the first one a liquid crystal has been infiltrated in the pores of the nanoparticle network, while in the ...
Guglielmo Lanzani   +6 more
openaire   +3 more sources

EON, Vol. 01, No. 01 [PDF]

open access: yes, 2012
Fall 2012 News and notes from the University of Dayton Electro-Optics Graduate Program.https://ecommons.udayton.edu/eop_newsletter/1002/thumbnail ...
University of Dayton. Electro-Optics and Photonics Program
core   +4 more sources

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