Results 31 to 40 of about 1,928,900 (335)
Spectral Shifts of Nonadiabatic High-Order Harmonic Generation
High-order harmonic generation (HHG) is a nonlinear nonperturbative process in ultrashort intense laser-matter interaction. It is the main source of coherent attosecond (1 as = 10−18 s) laser pulses to investigate ultrafast electron dynamics.
André D. Bandrauk, Xue-Bin Bian
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Anomalous blue-shift of terahertz whispering-gallery modes via dielectric and metallic tuning
The vast majority of resonant systems show a red-shift for the resonance frequency when a perturbation, e.g. losses, are introduced to the system. In contrast, here we report for the first time the experimental demonstration of both red- and anomalous ...
Jones, Angus Harvey +3 more
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Blue-shifted ancyromonad channelrhodopsins for multiplex optogenetics [PDF]
Abstract Light-gated ion channels from protists (channelrhodopsins or ChRs) are optogenetic tools widely used for controlling neurons and cardiomyocytes. Multiplex optogenetic applications require spectrally separated molecules, which are difficult to engineer without disrupting channel function.
Elena G. Govorunova +12 more
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Nanocrystalline lead sulfide (PbS) thin films have been successfully deposited onto glass substrate via microwave assisted chemical bath deposition.
Muhammed Husham
doaj
In this work, the Cd0.9-xZn0.1BixS QDs with different compositions of Bi3+ ions (0 ≤ x ≤ 0.05) were synthesized using a facile chemical route. The prepared QDs were characterized for analyzing the structural, morphological, elemental, optical, band gap ...
A. Krishnamoorthy +3 more
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Red shift, blue shift: investigating Doppler shifts, blubber thickness, and migration as explanations of seasonal variation in the tonality of Antarctic blue whale song. [PDF]
The song of Antarctic blue whales (Balaenoptera musculus intermedia) comprises repeated, stereotyped, low-frequency calls. Measurements of these calls from recordings spanning many years have revealed a long-term linear decline as well as an intra-annual
Brian S Miller +3 more
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Lattice-induced non-adiabatic frequency shifts in optical lattice clocks
We consider the frequency shift in optical lattice clocks which arises from the coupling of the electronic motion to the atomic motion within the lattice.
C. E. Moore, K. Beloy
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Temperature dependent photoluminescence of organic semiconductors with varying backbone conformation [PDF]
We present photoluminescence studies as a function of temperature from a series of conjugated polymers and a conjugated molecule with distinctly different backbone conformations.
Chandrasekhar, H. R. +8 more
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Defect Modes Generated in a Stack of Spin-Coated Chiral Liquid Crystal Layers
Nematic chiral liquid crystals (CLCs) are characterized by a helical arrangement of nematic LC molecules. A layer of CLC typically exhibits an optical reflection band due to Bragg reflection in the helical structure.
Frederik Van Acker +4 more
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Explaining the Gamma-Ray Burst E_peak Distribution [PDF]
The characteristic photon energy for Gamma Ray Bursts, E_peak, has a remarkably narrow distribution for bursts of similar peak flux, with values between 150 and 600 keV for most faint bursts.
Schaefer, Bradley E.
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