Results 21 to 30 of about 79,494 (306)

Highly Sensitive Sphere-Tube Coupled Photoacoustic Cell Suitable for Detection of a Variety of Trace Gases: NO2 as an Example

open access: yesSensors, 2021
The concentration of trace gases in the atmospheric environment is extremely low, but it has a great impact on the living environment of organisms. Photoacoustic spectroscopy has attracted extensive attention in the field of trace gas detection because ...
Zhengang Li   +7 more
doaj   +1 more source

Optical Turbulence Characteristics in the Upper Troposphere–Lower Stratosphere over the Lhasa within the Asian Summer Monsoon Anticyclone

open access: yesRemote Sensing, 2022
The high elevation, complex topography, and unique atmospheric circulations of the Tibetan Plateau (TP) make its optical turbulence characteristics different from those in low-elevation regions.
Kun Zhang   +5 more
doaj   +1 more source

Engineering multiphoton states for linear optics computation [PDF]

open access: yes, 2006
Transformations achievable by linear optical components allow to generate the whole unitary group only when restricted to the one-photon subspace of a multimode Fock space.
P. Aniello   +9 more
core   +1 more source

Double-layered transformation cavities: Crossover between local and global transformations [PDF]

open access: yes, 2022
© 2022 American Physical SocietyWe study the resonant modes in double-layered transformation cavities consisting of inner and outer layer boundaries where the mode intensity is mainly located inside the inner layer. This is an intermediate design between
Jung-Wan Ryu
core   +1 more source

Influence of Image Processing Method on Wavefront Reconstruction Accuracy of Large-Aperture Laser

open access: yesPhotonics, 2023
In order to improve the wavefront reconstruction accuracy of a large-aperture laser, this paper proposed an adaptive window preprocessing algorithm based on the threshold center of gravity method (AW-TCoG).
Gangyu Wang   +5 more
doaj   +1 more source

Multiphoton tomography with linear optics and photon counting [PDF]

open access: yes, 2018
Determining an unknown quantum state from an ensemble of identical systems is a fundamental, yet experimentally demanding, task in quantum science. Here we study the number of measurement bases needed to fully characterize an arbitrary multimode state ...
Kolthammer, W Steven   +2 more
core   +1 more source

Parameter Optimization and Development of Mini Infrared Lidar for Atmospheric Three-Dimensional Detection

open access: yesSensors, 2023
In order to conduct more thorough research on the structural characteristics of the atmosphere and the distribution and transmission of atmospheric pollution, the use of remote sensing technology for multi-dimensional detection of the atmosphere is ...
Zhiqiang Kuang   +5 more
doaj   +1 more source

Scattering from a cylindrical reflector: Modified theory of physical optics solution [PDF]

open access: yes, 2006
The problem of scattering from a perfectly conducting cylindrical reflector is examined with the method of the modified theory of physical optics.

core   +1 more source

Estimation of the Precipitable Water and Water Vapor Fluxes in the Coastal and Inland Cities of China Using MAX-DOAS

open access: yesRemote Sensing, 2021
Water vapor transport affects regional precipitation and climate change. The measurement of precipitable water (PW) and water vapor flux (WVF) is of great importance for the study of precipitation and water vapor transport.
Hongmei Ren   +10 more
doaj   +1 more source

Tensor network states in time-bin quantum optics [PDF]

open access: yes, 2018
The current shift in the quantum optics community towards experiments with many modes and photons necessitates new classical simulation techniques that efficiently encode many-body quantum correlations and go beyond the usual phase-space formulation.
Lubasch, M.   +35 more
core   +1 more source

Home - About - Disclaimer - Privacy