Results 121 to 130 of about 59,731 (197)

Diffraction based Hanbury Brown and Twiss interferometry performed at a hard x-ray free-electron laser

, 2017
We demonstrate experimentally Hanbury Brown and Twiss (HBT) interferometry at a hard X-ray Free Electron Laser (XFEL) on a sample diffraction patterns.
Chollet, M., Dzhigaev, D., Feng, Y., Gorobtsov, O. Yu., Kurta, R. P., Lazarev, S., Meijer, J. -M., Mukharamova, N., Petukhov, A. V., Serkez, S., Sikorski, M., Singer, A., Song, S., Vartanyants, I. A., Williams, G., Zhu, D.   +15 more
core  

Coherence‐Gated Mirau Interferometry for Single‐Shot Quantitative Phase Imaging and Motion Sensing

Laser &Photonics Reviews, EarlyView.
This paper presents a compact add‐on module converting a Mirau or other on‐axis interferometer into a single‐shot quantitative phase imaging system using coherence gating and precise optical path matching. Demonstrations include time‐resolved imaging of human cells and streaming red blood cells, visualization of evaporation dynamics in liquid mixtures,
Petr Bouchal, Martin Konečný, Zdeněk Nováček, Radim Chmelík, Zdeněk Bouchal   +4 more
wiley   +1 more source

Verification of Laser Heterodyne Interferometric Bench for Chinese Spaceborne Gravitational Wave Detection Missions

Research
Construction of laser heterodyne interferometric bench to measure tiny translation and tilt with picometer- and nanoradian-level sensitivity in the millihertz band is critical for the success of spaceborne gravitational wave detection, including the LISA,
Xin Xu, Heshan Liu, Yidong Tan
doaj   +1 more source

Beam-modulation methods in quantitative and flow visualization holographic interferometry [PDF]

This report discusses heterodyne holographic interferometry and time-average holography with a frequency shifted reference beam. Both methods will be used for the measurement and visualization of internal transonic flows, where the target facility is a ...
Decker, A.
core   +1 more source

Aero-optical characterization of aircraft optical turrets by holography, interferometry and shadowgraph [PDF]

, 1980
Density variations in the aircraft boundary layer, turret wakes and shock waves create distortion of an optical wavefront through associated refractive index variations. Such effects can be observed directly through optical flow visualization.
Trolinger, J. D.
core   +1 more source

Generation of Optical Quasiparticles with Spin–Orbit Conversion in a Single Q‐Plate

Laser &Photonics Reviews, EarlyView.
Spin‐Orbit conversion approach with a q‐plate for generating optical quasiparticles. ABSTRACT In this work, we detail a novel approach which can be used for the generation of optical quasiparticles. This process leverages both spin‐orbit conversion control with wavelength de‐tuning in a commercially available q‐plate.
Jingni Geng, Srinivasa Rao Allam, Quan Sheng, Takashige Omatsu   +3 more
wiley   +1 more source

Twenty-Meter Laser Strainmeter “Popova Isl.”

Sensors
This paper describes the design and principle of operation of a 20 m laser strainmeter of unequal-arm type created on the basis of a Michelson interferometer and frequency-stabilized helium–neon laser.
Mikhail Bolsunovskii, Grigory Dolgikh, Stanislav Dolgikh, Vladimir Chupin, Viacheslav Shvets, Sergey Yakovenko   +5 more
doaj   +1 more source

NIR/VIS Dual‐Comb Spectroscopy Comparing High and Low Repetition Rate Regimes

Laser &Photonics Reviews, EarlyView.
This work compares dual‐comb spectroscopy at lower and higher repetition rates, emphasizing the inherent trade‐off between spectral and temporal resolution. The 80 MHz system provides high‐resolution spectra suitable for analyzing complex molecular structures, whereas the free‐running 1 GHz platform enables fast measurements for real‐time trace gas ...
Alexander Eber, Mithun Pal, Lukas Fürst, Emily Hruska, Christoph Gruber, Marcus Ossiander, Birgitta Bernhardt   +6 more
wiley   +1 more source

Metrological investigation of an actuator device for vibration assisted turning [PDF]

FME Transactions, 2015
Vibration assisted machining has the advantages of improved tool lifetime and chip breaking together with improved chip flushing and chip clearance. The basic principle of vibration assisted machining is the stimulation of either the cutting tool or the ...
Fuchs Martin, Habersohn Christoph, Kalkan Yakup, Lechner Christoph, Bleicher Friedrich   +4 more
doaj  

Quantifying Protein–Glycan Interactions Using Native Mass Spectrometry

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Interactions between glycan‐binding proteins (GBPs) and carbohydrates (glycans) are essential to many biological processes relevant to human health and disease. For most GBPs, however, their glycan interactome—the repertoire of glycans recognized and their specificities—is poorly defined.
Duong T. Bui, Elena N. Kitova, Ling Han, Lara K. Mahal, John S. Klassen   +4 more
wiley   +1 more source