Results 91 to 100 of about 2,708,251 (409)

Wavelength-dependence of laser excitation process on silicon surface [PDF]

open access: yesPhys. Rev. Applied 13, 024062 (2020), 2019
We report a first-principle calculation for the wavelength-dependence of a laser excitation process on a silicon surface.
arxiv   +1 more source

Folded-path self-pumped wavelength converter based on four-wave mixing in a semiconductor optical amplifier [PDF]

open access: yes, 1997
A four-wave mixing wavelength converter with no external pump laser and very low input signal power requirements is characterized. The wavelength conversion occurs inside a high-reflection/antireflection coated semiconductor optical amplifier pigtailed ...
Hunziker, Guido   +4 more
core   +1 more source

Wavelength-multiplexed quantum networks with ultrafast frequency combs [PDF]

open access: yesNature Photonics, 2013
Highly entangled quantum networks (cluster states) lie at the heart of recent approaches to quantum computing1,2. Yet the current approach for constructing optical quantum networks does so one node at a time3,4,5, which lacks scalability.
J. Roslund   +4 more
semanticscholar   +1 more source

An enzyme‐linked immunosorbent assay (ELISA)‐based activity assay for AMP‐activated protein kinase (AMPK)

open access: yesFEBS Open Bio, EarlyView.
Measuring AMP‐activated protein kinase (AMPK) activity in vitro is crucial for testing AMPK activators or inhibitors with therapeutic potential. Here, we report an enzyme‐linked immunosorbent assay (ELISA)‐based AMPK activity assay with simple steps and high sensitivity, which offers a simple, robust, and cost‐effective alternative to traditional ...
Trezze P. Nguyen, Shangze Lyu, Yang Liu
wiley   +1 more source

The Influence of Light Wavelength on Human HPA Axis Rhythms: A Systematic Review

open access: yesLife, 2023
Environmental light entrains many physiological and behavioural processes to the 24 h solar cycle. Such light-driven circadian rhythms are centrally controlled by the suprachiasmatic nucleus (SCN), which receives information from the short-wavelength ...
Isabella Robertson-Dixon   +3 more
doaj   +1 more source

Long wavelength infrared detector [PDF]

open access: yes, 1993
Long wavelength infrared detection is achieved by a detector made with layers of quantum well material bounded on each side by barrier material to form paired quantum wells, each quantum well having a single energy level.
Vasquez, Richard P.
core   +1 more source

Parallel Implementation of the PHOENIX Generalized Stellar Atmosphere Program. II: Wavelength Parallelization [PDF]

open access: yes, 1997
We describe an important addition to the parallel implementation of our generalized NLTE stellar atmosphere and radiative transfer computer program PHOENIX.
Baron E.   +4 more
core   +3 more sources

Pixel super-resolution using wavelength scanning

open access: yesLight: Science & Applications, 2015
Undersampling and pixelation affect a number of imaging systems, limiting the resolution of the acquired images, which becomes particularly significant for wide-field microscopy applications.
Wei Luo   +4 more
semanticscholar   +1 more source

On subcellular distribution of the zinc finger 469 protein (ZNF469) and observed discrepancy in the localization of endogenous and overexpressed ZNF469

open access: yesFEBS Open Bio, EarlyView.
ZNF469 regulates the expression of genes encoding extracellular matrix proteins. Endogenous ZNF469 is predominantly cytoplasmic, while in transfected cells, it forms aggregates reminiscent of biomolecular condensates, located mainly in the nucleus. These condensates exhibit overlapping staining with proteasomes and are also associated with the mitotic ...
Anne Elisabeth Christensen Mellgren   +8 more
wiley   +1 more source

Impact of optical wavelength on the reliability of photoplethysmography-based heart rate measurements outside of controlled laboratory environments

open access: yesCurrent Issues in Sport Science
Introduction The effectiveness of heart rate (HR) measurements via photoplethysmography (PPG) depends on the wavelength of light used. Typical PPG sensors use green, red, or infrared light, each penetrating the skin to different depths (Ray et al ...
Manuel Meier, Christian Holz
doaj   +1 more source

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