Results 81 to 90 of about 518,652 (261)

Electronically tunable coherent Raman spectroscopy using acousto-optics tunable filter.

open access: yesOptics Express, 2015
Fast and sensitive Raman spectroscopy measurements are imperative for a large number of applications in biomedical imaging, remote sensing and material characterization. In this report, by introducing an electronically-tunable acousto-optical filter as a
G. Petrov, Zhaokai Meng, V. Yakovlev
semanticscholar   +1 more source

Optical‐to‐Microcomb Stability Transfer for Ultrastable Timing and Microwave/Millimeter‐Wave Generation

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates a high‐fidelity stability transfer from an optical reference to a high‐repetition‐rate microcomb using a mode‐locked laser bridge. By employing electro‐optic sampling timing detection, femtosecond‐level synchronization and 10−18‐level fractional frequency stability are achieved.
Changmin Ahn   +4 more
wiley   +1 more source

Fast surface measurement using wavelength scanning interferometry with compensation of environmental noise

open access: yes, 2010
We introduce a new optical interferometry system for fast areal surface measurement of microscale and nanoscale surfaces that are immune to environmental noise.
Gao, F.   +5 more
core   +1 more source

Polarization Analysis of Vertically Etched Lithium Niobate-on-Insulator (LNOI) Devices

open access: yesPhotonics
LNOI devices have emerged as prominent contributors to photonic integrated circuits (PICs), benefiting from their outstanding performance in electro-optics, acousto-optics, nonlinear optics, etc.
Chenyu Wang   +10 more
doaj   +1 more source

Comprehensive Imaging of Sensory-Evoked Activity of Entire Neurons Within the Awake Developing Brain Using Ultrafast AOD-Based Random-Access Two-Photon Microscopy

open access: yesFrontiers in Neural Circuits, 2020
Determining how neurons transform synaptic input and encode information in action potential (AP) firing output is required for understanding dendritic integration, neural transforms and encoding.
Kelly D. R. Sakaki   +4 more
doaj   +1 more source

Therapeutic potential of small molecules that block receptor‐induced Kv7/M‐current suppression in neuroprotection, seizures, and pain

open access: yesBritish Journal of Pharmacology, EarlyView.
Receptor‐induced Kv7/M‐current suppression increases neuronal activity and contributes to pathology of several conditions. A new class of Kv7 modulators identified in this study attenuates M‐current suppression and shows therapeutic effects. Abstract Background and Purpose Neuronal Kv7 channels generate low voltage–gated potassium currents known as the
Young Woo Kim   +5 more
wiley   +1 more source

Studies into the detection of buried objects (particularly optical fibres) in saturated sediment. Part 5: an acousto-optic detection system

open access: yes, 2007
This report is the last in a series of five, designed to investigate the detection oftargets buried in saturated sediment, primarily through acoustical or acoustics-relatedmethods. Although steel targets are included for comparison, the major interest is
Evans, R.C.P.
core  

6-th International Spring School on Acousto-optics and Applications

open access: yesArchives of Acoustics, 2014
At the same place as the 5-th School in 1992 at Jurata situated on the Hel Peninsula 70 km from Gdańsk the 6th International Spring School on Acousto-optics was organized by the Institute of the Experimental Physics of the University of Gdańsk in ...
Editorial Board Archives of Acoustics
doaj  

Novel Hydrurus species (Chrysophyceae) and their adaptations to high‐altitude European and Arctic snowfields

open access: yesJournal of Phycology, EarlyView.
Abstract Colored snow caused by green algae (Chlorophyceae) is well known, but melting snowpacks can also harbor golden‐brown blooms consisting of Chrysophyceae. We collected 14 samples of cryoflora in the Austrian and Swiss Alps, the High Tatras in Slovakia, and in Arctic Svalbard. Eight laboratory unicellular flagellated strains were established from
Lenka Procházková   +6 more
wiley   +1 more source

The existence of five-wave non-collinear acousto-optical weakly coupled states [PDF]

open access: yes, 2008
Five-wave Bragg solitary waves in the form of weakly coupled states, occurring within a four-order non-collinear scattering of light by acoustic waves in an optically anisotropic crystal, are identified and investigated.
ALEXANDER SHCHERBAKOV   +1 more
core  

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