Results 21 to 30 of about 590,930 (190)

Spectral Shifts of Nonadiabatic High-Order Harmonic Generation

open access: yesApplied Sciences, 2013
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
doaj   +1 more source

Exploration of natural red-shifted rhodopsins using a machine learning-based Bayesian experimental design

open access: yesCommunications Biology, 2021
Inoue, Takeuchi and colleagues propose a machine learning-based protocol to screen rhodopsins for their likelihood to be red-shifted. After experimental verification, their tool shows remarkable success at identifying rhodopsins that showed red-shift ...
Keiichi Inoue   +12 more
doaj   +1 more source

Extreme red shifted SERS nanotags [PDF]

open access: yesChemical Science, 2015
Extreme red-shifted nanotags have been developed and they provide effective SERS with picomolar detection limits when excited at 1280 nm.
Bedics, Matthew A.   +9 more
openaire   +5 more sources

Ultrafast Lasing Dynamics in a CsPbBr3 Perovskite Microplate

open access: yesAdvanced Photonics Research, 2022
The perovskite microlaser is a competitive candidate of light source for optical communication and integrated photonic circuits. Understanding the fundamental mechanism of lasing is crucial for the upcoming devices.
Ju Wang   +8 more
doaj   +1 more source

Specific Alcohol-Responsive Photonic Crystal Sensors Based on Host-Guest Recognition

open access: yesGels, 2023
A photonic crystal material based on β-cyclodextrin (β-CD) with adsorption capacity is reported. The materials ((A-β-CD)-AM PC) consist of 3D poly (methyl methacrylate) (PMMA) colloidal microsphere arrays and hydrogels supplemented with β-cyclodextrin ...
Xiaolu Cai   +6 more
doaj   +1 more source

mBeRFP, an improved large stokes shift red fluorescent protein.

open access: yesPLoS ONE, 2013
Herein, we describe the generation of a monomeric large Stokes shift (LSS) red fluorescent protein, mBeRFP, with excitation and emission peaks at 446 and 615 nm, respectively. Compared with two previously reported LSS-RFPs (mKeima and LSS-mKate2), mBeRFP
Jie Yang   +7 more
doaj   +1 more source

The Gravitational Red-Shift

open access: yes, 2004
3 ...
Evans, R. F., Dunning-Davies, J.
openaire   +2 more sources

A Density Functional Theory Study of Raman Modes of Hydrogenated Cadmium Sulphide Nanoparticles

open access: yesNanomaterials and Nanotechnology, 2012
Raman scattering investigations based on density functional theory (DFT) calculations were performed to explore the vibrational modes of wurtzite structured CdS nanoparticles (NPs).
Abdul Majid   +4 more
doaj   +1 more source

The Electron Spin Resonance (Esr) Spectra of Potassium-Alumina-Borate Glass Doped with Copper Ions

open access: yesReviews on Advanced Materials Science, 2018
We investigate electron spin resonance (ESR), absorption, and photoluminescence spectra of potassium-boron copper-containing glasses. In previous works it was found, that the considered glasses demonstrate a red shift of photoluminescence.
Shirshnev P.S.   +7 more
doaj   +1 more source

Cosmological Red-shift [PDF]

open access: yesNature, 1964
Hoyle1 has shown that for a steady-state universe consisting of uniformly distributed matter of density ρ a metric of the form: applies if it is assumed that a uniform creation of matter occurs.
openaire   +2 more sources

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