Results 31 to 40 of about 16,988 (191)

A label-free, fast and high-specificity technique for plant cell wall imaging and composition analysis

open access: yesPlant Methods, 2021
Background New cell wall imaging tools permit direct visualization of the molecular architecture of cell walls and provide detailed chemical information on wall polymers, which will aid efforts to use these polymers in multiple applications; however ...
Huimin Xu   +7 more
doaj   +1 more source

Polarization-Resolved Approach to the Origin of the Nonresonant Background in Coherent Anti-Stokes Hyper-Raman Scattering Spectroscopy. [PDF]

open access: yesChemphyschem
Coherent anti‐Stokes hyper‐Raman scattering (CAHRS) spectroscopy, which we have developed recently, is based on a fifth‐order nonlinear spectroscopy. Vibrationally nonresonant signals may impede sensitive detection of vibrational resonant components. Many optical processes can contribute to nonresonant background signals.
Inoue K, Okuno M.
europepmc   +2 more sources

Extreme Value Statistics in Silicon Photonics

open access: yesIEEE Photonics Journal, 2009
L-shape probability distributions are extremely non-Gaussian functions that have been surprisingly successful in describing the occurrence of extreme events ranging from stock market crashes, natural disasters, structure of biological systems, fractals ...
D. Borlaug, S. Fathpour, B. Jalali
doaj   +1 more source

Measurement-induced collective vibrational quantum coherence under spontaneous Raman scattering in a liquid

open access: yesNature Communications, 2023
Spontaneous vibrational Raman scattering is a ubiquitous form of light–matter interaction whose description necessitates quantization of the electromagnetic field.
Valeria Vento   +3 more
doaj   +1 more source

Sensitivity of coherent anti-Stokes Raman lineshape to time asymmetry of laser pulses

open access: yes, 2014
We show that coherent anti-Stokes Raman lineshapes do not follow known spectral profiles if the time asymmetry of realistic laser pulses is taken into account.
Bengtsson, Per-Erik   +2 more
core   +1 more source

Collective Sideband Cooling in an Optical Ring Cavity [PDF]

open access: yes, 2003
We propose a cavity based laser cooling and trapping scheme, providing tight confinement and cooling to very low temperatures, without degradation at high particle densities.
A. Doherty   +16 more
core   +2 more sources

Realignment-enhanced coherent anti-Stokes Raman scattering (CARS) and three-dimensional imaging in anisotropic fluids

open access: yes, 2008
We apply coherent anti-Stokes Raman Scattering (CARS) microscopy to characterize director structures in liquid crystals.Comment: 14 pages, 11 ...
Aliaksandr V. Kachynski   +43 more
core   +1 more source

The influence of phase-modulation on femtosecond time-resolved coherent Raman spectroscopy [PDF]

open access: yes, 1988
The influence of phase-modulation on femtosecond time-resolved coherent Raman scattering is investigated theoretically and experimentally. The coherent Raman signal taken as a function of the spectral position shows unexpected temporal oscillations close
A. Laubereau   +18 more
core   +1 more source

Background-free time-resolved coherent Raman spectroscopy (CSRS and CARS): Heterodyne detection of low-energy vibrations and identification of excited-state contributions

open access: yesAPL Photonics, 2019
Coherent Raman scattering (CRS) spectroscopy techniques have been widely developed and optimized for different applications in biomedicine and fundamental science. The most utilized CRS technique has been coherent anti-Stokes Raman scattering (CARS), and
Pavel V. Kolesnichenko   +2 more
doaj   +1 more source

Coherent anti-Stokes Raman scattering microscopy

open access: yesThe Review of Laser Engineering, 2002
In this paper, new multiphoton microscopy using CARS (coherent anti-Stokes Raman scattering) spectroscopy is described. CARS microscopy has the features of non-staining molecular mapping by molecular vibration imaging and three-dimensional resolution by multiphoton process.
openaire   +3 more sources

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