Results 81 to 90 of about 88,044 (260)

On the Impact of Mechanical Constraint on Band Structure and Photo‐Elastic Effect in Photonic Resonators

Advanced Physics Research, EarlyView.
We computationally investigate the mechanical, electronic, and optical properties of strained GeSn microdisks on silicon substrates. By combining photo‐elasticity, strain‐dependent band‐structure calculations, and optical mode analysis, we study how strain distribution, structural configuration, and temperature affect the electronic band structure and ...
Jon Schlipf, Ignatii Zaitsev, Inga Anita Fischer, Davide Spirito, Bernd Witzigmann, Costanza Lucia Manganelli   +5 more
wiley   +1 more source

Fluid flow analysis by a modified, white light, Lau interferometer [PDF]

, 2002
This paper presents a sharp focussing schlieren system based upon a modified Lau interferometer. A method of reducing the depth of focus of the system is demonstrated and the development of the system to study large fields of view by theincorporation of ...
Waddell, Peter, Stickland, M.T., McKay, S., Mason, S., Mair, L.   +4 more
core   +2 more sources

Research and Advances in Miniaturization of Optical Spectrometers

Optics
Spectrometers are essential instruments used to analyze the spectral characteristics of substances and are widely applied in detecting material composition, structure, and concentration.
Jingyi Wei, Tingting Lang, Zhuoyang Liu
doaj   +1 more source

Quantum Adiabatic Pumping in Rashba- Dresselhaus-Aharonov-Bohm Interferometer

Entropy, 2019
We investigate the quantum adiabatic pumping effect in an interferometer attached to two one-dimensional leads. The interferometer is subjected to an Aharonov-Bohm flux and Rashba-Dresselhaus spin-orbit interaction.
Yasuhiro Tokura
doaj   +1 more source

Self-Mixing Diode Laser Interferometry [PDF]

, 2010
Self-mixing interferometry in a laser diode is a very powerful tool in measurement science. The Self-mixing interferometer is a very robust and low cost interferometer with extreme simplicity in alignment and setup.
Shrestha, Pawan Kumar
core  

EBHIS Local Volume Galaxy Hi Survey (LVGHIS)

Astronomische Nachrichten, EarlyView.
ABSTRACT Here, we present the “Local Volume Galaxy Hi Survey” (LVGHIS). It is based on the first data release of the Milky Way portion of the Effelsberg Bonn Hi‐Survey (EBHIS). We homogeneously measured the mass and dynamics of the local volume galaxies within the radial velocity limit of |vLSR|≤600kms−1$$ \mid {v}_{\mathrm{LSR}}\mid \le 600\kern0.6em \
V. A. Schulz, J. Kerp, A. C. Schröder, B. Winkel   +3 more
wiley   +1 more source

2-dimensional in-plane displacement measurement system at fast sampling rate of 5 kHz using sinusoidal phase modulation interferometer

Journal of the European Optical Society-Rapid Publications
Dynamic and high-resolution air fluctuation (wavefront aberration) measurements are necessary for precision interferometry and astronomical observations.
Higuchi Masato, Sato Taku, Aketagawa Masato   +2 more
doaj   +1 more source

MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors

Carbon Energy, EarlyView.
MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee, Jagadis Gautam, Shrikant Vaiju Sadavar, Soo‐Jin Park   +3 more
wiley   +1 more source

A compact interferometer insensitive to scanning speed variations

, 2013
A compact moving optical-wedge interferometer (CMOWI) is presented. This device consists of a moving optical wedge (MOW), a fixed optical wedge (FOW), a fixed compensating plate, and a beam-splitting cube.
Zhao, Baochang, Yang, Qinghua, Zeng, Xiaodong   +2 more
core   +1 more source

Detection of Legionella Bacteria Using a Silicon‐Based Photonic Microring Resonator Biosensor Enhanced by Dielectrophoresis

ELECTROPHORESIS, EarlyView.
Silicon photonic biosensors enable label‐free, highly sensitive detection but struggle with living bacteria due to inefficient cell binding on nanoscale surfaces. We integrate a microring resonator with a dielectrophoretic electrode, actively concentrating Legionella cells near the sensor using alternating electric fields.
Anders Henriksson, Philipp Schrenk, Jamie R. K. Marland, Andreas Tsiamis, Ha Duong Ngo, Jörg König, David Schreier, Stewart Smith, Han Zhang, Arum Han, Peter Neubauer, Mario Birkholz   +11 more
wiley   +1 more source