Results 71 to 80 of about 518,652 (261)
Acousto-optics of Biaxial Crystals
, 2015 An original program is developed for examination of acousto-optic interaction in biaxial crystals. The program makes it possible to calculate for an arbitrary crystal cut all parameters of optical and acoustic waves, frequency dependences of the Bragg ...
Kupreychik, Maxim I. +1 more
core +1 more source
Optical router for optical fiber sensor networks based on a liquid crystal cell [PDF]
, 2003 Optical fiber sensor networks are evolving rapidly. They are used because of the inert nature of optical fibers allowing no electromagnetic interference and safe applications in inflammable atmospheres; other relevant characteristics are their low ...
Sánchez-Pena, José Manuel +4 more
core +1 more source
ChemPhysChem, Volume 26, Issue 6, March 15, 2025.Linear infrared spectroscopy combined with isotope labeling and density functional theory unravels the origin of a Fermi triad in a multifunctional vibrational chromophore. Ultrafast 2DIR‐spectroscopy reports directly on the dynamics and the intramolecular vibrational energy flow pathways in the isotopically deperturbed system. Abstract Infrared probes
Claudia Gräve +4 more
wiley +1 more source
, 2007 We theoretically and numerically investigate indirect mid-infrared pulse shaping via parametric transfer, specifically difference-frequency generation. We define a quantitative measure for the fidelity of parametric transfer, and investigate the effect ...
Hanna, David C. +7 more
core +1 more source
Towards acousto-optic tissue imaging with nanosecond laser pulses [PDF]
, 2014 We present a way to generate acousto-optical signals in timovssue-like media with nanosecond laser pulses. Our method is based on recording and analyzing speckle patterns formed by interaction of nanosecond laser pulses with tissue, without and with ...
Hondebrink, E. +2 more
core +1 more source
Enhancement the Agglutination of Erythrocytes in Blood Typing Test by Acousto-Optic Technique
مجلة النهرين للعلوم الهندسية, 2020 A proposed modern technique for determination the blood group typing by monitoring the agglutination of red blood cells using acousto-optical technique and digital camera.
Farah Mohammed Ali +2 more
doaj +1 more source
Body‐integrated photonic biosensors: Illuminating the path to active healthcare
FlexMat, EarlyView.Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu +10 more
wiley +1 more source
Supercritical Angle Fluorescence and Raman Techniques in Biophotonics
Laser &Photonics Reviews, EarlyView.Supercritical angle fluorescence (SAF) microscopy and supercritical angle Raman (SAR) spectroscopy have emerged as powerful tools in the field of biophotonics, enabling high‐resolution imaging and spectroscopy of biological specimens near interfaces. This review article provides a comprehensive overview of the principles, techniques, applications, and ...
Subir Das +2 more
wiley +1 more source
Stimulated Forward Brillouin Scattering in Subwavelength Grating Silicon Membranes
Laser &Photonics Reviews, EarlyView.This work proposes a novel strategy to achieve large Brillouin scattering with independent control of the optical and mechanical modes using subwavelength silicon membranes. We experimentally demonstrate remarkably high Brillouin gain, resulting in an on/off Stokes gain of 3 dB and anti‐Stokes loss of 4 dB in a 6 mm‐long waveguide with 35 mW of on‐chip
Paula Nuño Ruano +8 more
wiley +1 more source
Germanium Single Crystals for Photonics
CrystalsGermanium (Ge) is a system-forming material of IR photonics for the atmospheric transparency window of 8–14 µm. For optics of the 3–5 µm range, more widespread silicon (Si), which has phonon absorption bands in the long-wave region, is predominantly used.
Grigory Kropotov +2 more
doaj +1 more source