Results 91 to 100 of about 21,165 (218)

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

open access: yesLaser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout   +17 more
wiley   +1 more source

ZEMAX Simulations and Experimental Validation of Laser Interferometers

open access: yesPhotonics
This study presents the design, simulation, and experimental validation of six fundamental laser interferometer types: Sagnac, Mach–Zehnder, Michelson, Twyman–Green, Fizeau, and Fabry–Pérot.
Muddasir Naeem, Tayyab Imran
doaj   +1 more source

Cascading of Liquid Crystal Elastomer Photomechanical Optical Devices

open access: yes, 2010
Photomechanical actuation is demonstrated in two coupled liquid crystal elastomer photomechanical optical devices (PODs) acting in series. The response function of an individual POD is characterized and used to predict the temporal response of the ...
Dawson, Nathan J.   +4 more
core   +1 more source

UNSWIRF: A Tunable Imaging Spectrometer for the Near-Infrared [PDF]

open access: yes, 1998
We describe the specifications, characteristics, calibration, and analysis of data from the University of New South Wales Infrared Fabry-Perot (UNSWIRF) etalon.
Allen, Lori E.   +5 more
core   +2 more sources

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

open access: yesLaser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf   +8 more
wiley   +1 more source

Development and Optimization of a Differential Signal-Based Fabry-Perot Interferometer for Nanopositioning

open access: yesTehnički Glasnik
In this study, we present the optimization of a Fabry-Perot interferometer with a differential signal utilized as the laser encoder to meet the stringent demands of nanopositioning.
Syuan-Cheng Chang   +2 more
doaj   +1 more source

Overview of Advanced LIGO Adaptive Optics

open access: yes, 2016
This is an overview of the adaptive optics used in Advanced LIGO (aLIGO), known as the thermal compensation system (TCS). The thermal compensation system was designed to minimize thermally-induced spatial distortions in the interferometer optical modes ...
Abbott, Benjamin   +25 more
core   +1 more source

One-shot x-ray detection based on the instantaneous change in the refractive index of GaAs

open access: yesAIP Advances, 2020
An interferometric semiconductor x-ray detection system is proposed in this paper. The system is based on the RadOptic effect, and it utilizes Fabry–Perot interferometry to measure radiation-induced changes in the optical refractive index of a ...
Guilong Gao   +10 more
doaj   +1 more source

A high altitude measurement to determine the ratio of deuterium to hydrogen in the solar atmosphere Quarterly status report, 1 Dec. 1965 - 28 Feb. 1966 [PDF]

open access: yes
Optical systems for high altitude measurements to determine deuterium-hydrogen ratio in solar photosphere by recording profiles of Fraunhofer ...
Henderson, G.
core   +1 more source

Electron interferometry in quantum Hall regime: Aharonov-Bohm effect of interacting electrons

open access: yes, 2009
An apparent h/fe Aharonov-Bohm flux period, where f is an integer, has been reported in coherent quantum Hall devices. Such sub-period is not expected for non-interacting electrons and thus is thought to result from interelectron Coulomb interaction ...
D. Yoshioka   +3 more
core   +1 more source

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