Results 251 to 260 of about 4,208,561 (328)

Differential photoacoustic-stimulated Raman spectroscopy (DPA-SRS) for high-sensitivity hydrogen detection. [PDF]

Photoacoustics
Yu X, Li Z, Liu J, Xu H, Miao J, Wang C, Fang Y, Pan Y, Fang Y.   +8 more
europepmc   +1 more source

Laser-Reduced Graphene Oxide with Ultralow Defect Density for Paper-Supported Electrochemical Capacitors. [PDF]

ACS Omega
Samartzis N, Bellou E, Athanasiou M, Sygellou L, Yannopoulos SN.   +4 more
europepmc   +1 more source

Sub-part-per-trillion test of the Standard Model with atomic hydrogen. [PDF]

Nature
Maisenbacher L, Wirthl V, Matveev A, Grinin A, Pohl R, Hänsch TW, Udem T.   +6 more
europepmc   +1 more source

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Methane leak detection by tunable laser spectroscopy and mid-infrared imaging.

Applied Optics, 2021
Tunable laser spectroscopy (TLS) combined with mid-infrared imaging is a powerful tool for a sensitive and quantitative visualization of gas leaks. This work deals with standoff methane leak detection within 2 m by an interband cascade laser (3270 nm ...
T. Strahl, J. Herbst, A. Lambrecht, Eric Maier, Jonas Steinebrunner, J. Woellenstein   +5 more
semanticscholar   +1 more source

Optical trapping and laser-spectroscopy measurements of single particles in air: a review

Measurement science and technology, 2021
From the early optical-tweezers approach, which uses a single tightly focused laser beam to levitate dielectric or absorbing micron-sized particles, to the recently developed optical traps such as the universal optical trap (UOT), which can trap ...
Chuji Wang, Yong-le Pan, G. Videen
semanticscholar   +1 more source

Identification of microplastics in human placenta using laser direct infrared spectroscopy.

Science of the Total Environment, 2022
Microplastics are ubiquitous in the environment, including in food and drinking water. Consequently, there is growing concern about the human health risks associated with microplastic exposure through diet. However, the occurrence of microplastics in the
Long Zhu, Jingying Zhu, Rui Zuo, Qiu-jin Xu, Yanhua Qian, A. Lihui   +5 more
semanticscholar   +1 more source