Results 91 to 100 of about 70,192 (249)

Nanometric sensing with laser feedback interferometry

open access: yesOptics Letters, 2019
We demonstrate a nanometric sensor based on feedback interferometry in a distributed feedback (DFB) laser by using a measurement of either the optical frequency or laser voltage. We find that in an optimal range of optical feedback, the sensor operates reliably down to an extrapolated 12 nm; for the sensor demonstrated here at ∼1550  nm, this provides ...
Choi, Daeyoung   +4 more
openaire   +5 more sources

Pt‐TiO2 mesoporous nanosystem co‐delivering phlorezin enables synergistic sonodynamic‐chemoimmunotherapy for hepatocellular carcinoma via directly targeting DDX5 and metabolic reprogramming modulation

open access: yesBMEMat, EarlyView.
Abstract Hepatocellular carcinoma (HCC), ranking as the third leading cause of cancer‐related mortality globally, continues to pose significant therapeutic challenges. Here, we developed an innovative nanosystem, Phl@PT, based on Pt‐TiO2 nanoparticles for the co‐delivery of Phlorezin, presenting a novel approach for HCC treatment through sonodynamic ...
Kairui Liu   +13 more
wiley   +1 more source

Single-shot spatiotemporal characterization of ultrashort lasers based on spectral interferometry with fiber array

open access: yesCommunications Physics
In the realm of ultra-intense laser physics, the precise characterization of laser pulses is indispensable for ensuring optimal peak power and experimental fidelity.
Yilin Xu   +6 more
doaj   +1 more source

Novel Principle of Contactless Gauge Block Calibration

open access: yesSensors, 2012
In this paper, a novel principle of contactless gauge block calibration is presented. The principle of contactless gauge block calibration combines low-coherence interferometry and laser interferometry.
Ondřej Číp   +5 more
doaj   +1 more source

Method of and apparatus for double-exposure holographic interferometry [PDF]

open access: yes, 1984
Double-exposure holographic interferometry is carried out using first and second lasers responsive to respective applied firing signals for producing respective pulsed output beams. An optical system is provided oriented such that the output beams of the
Witherow, W. K.
core   +1 more source

ASTROD-GW: Overview and Progress

open access: yes, 2012
In this paper, we present an overview of ASTROD-GW (ASTROD [Astrodynamical Space Test of Relativity using Optical Devices] optimized for Gravitational Wave [GW] detection) mission concept and its studies.
Ni, Wei-Tou
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

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

open access: yes, 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

Orbit optimization for ASTROD-GW and its time delay interferometry with two arms using CGC ephemeris

open access: yes, 2012
ASTROD-GW (ASTROD [Astrodynamical Space Test of Relativity using Optical Devices] optimized for Gravitation Wave detection) is an optimization of ASTROD to focus on the goal of detection of gravitation waves. The detection sensitivity is shifted 52 times
  +36 more
core   +1 more source

Nanomaterials and Eco‐Friendly Refrigerants in Vapor Compression System: A Review of Performance and Sustainability

open access: yesEnergy Science &Engineering, EarlyView.
This review highlights how nano oils and eco‐friendly nano refrigerants enhance energy‐efficient refrigeration by improving thermal conductivity, lubrication, and system performance. The integration of rheological and tribological testing confirms reduced compressor work, better heat transfer, and higher COP using sustainable, low‐GWP refrigerants for ...
Mohammed Dilawar   +7 more
wiley   +1 more source

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