Results 21 to 30 of about 4,989,468 (303)

Laser spectroscopy and ab initio calculations on the TaF Molecule [PDF]

open access: yes, 2016
Electronic transition spectrum of the tantalum monoflouride (TaF) molecule in the spectral region between 448 and 520 nm has been studied using the technique of laser-ablation/reaction free jet expansion and laser induced fluorescence spectroscopy.
Ng, KF   +7 more
core   +1 more source

Direct observation of mode-specific phonon-band gap coupling in methylammonium lead halide perovskites

open access: yesNature Communications, 2017
Methylammonium lead iodide perovskite, a promising material for efficient photovoltaics, shows a unique temperature dependence of its optical properties. Kim et al.
Heejae Kim   +8 more
doaj   +1 more source

Optical Spectroscopy of Molecular Positronium

open access: yesPhysical Review Letters, 2012
We report optical spectroscopic measurements of molecular positronium (Ps(2)), performed via a previously unobserved L=1 excited state. Ps(2) molecules created in a porous silica film, and also in vacuum from an Al(111) crystal, were resonantly excited and then photoionized by pulsed lasers, providing conclusive evidence for the production of this ...
Cassidy, DB   +3 more
openaire   +4 more sources

LASER IONIZATION SPECTROSCOPY OF AcF AND KING-PLOT ANALYSIS OF MOLECULAR ISOTOPE SHIFTS [PDF]

open access: yes, 2023
The research potential of radioactive molecules for both fundamental and applied science has recently been recognized and significant progress has been marked at ISOLDE on both the production and the spectroscopy of radioactive molecules.
Athanasakis-Kaklamanakis, Michail
core   +1 more source

Molecular spectroscopy with a multimode THz quantum-cascade laser [PDF]

open access: yes, 2011
A terahertz absorption spectrometer for highresolution molecular spectroscopy is realized. The spectrometer is based on a multimode quantum-cascade laser. The design and performance of the spectrometer are presented.
A. D. Semenov   +19 more
core   +1 more source

Molecular spectroscopy at the jet propulsion laboratory [PDF]

open access: yes, 2019
Made available in DSpace on 2019-07-15T22:16:49Z (GMT). No. of bitstreams: 2 3956.pdf: 13776 bytes, checksum: c216a4505c2573c3f8596d6ecde20fb5 (MD5) license.txt: 4802 bytes, checksum: 58353f9dd6876860dd5221f3d7872a95 (MD5) Previous issue date: 2019-06 ...
Drouin, Brian, Brian Drouin
core   +1 more source

A General Path To Infrared Spectroscopy Of Single Molecular Ions [PDF]

open access: yes, 2021
Definitive identification of single molecules is a natural limit of analytic chemistry. While single molecule spectroscopy is routinely performed on select classes of molecules, a general method for identifying individual molecules - including molecules
Patterson, David, David Patterson
core   +1 more source

Reconstruction and regularization approaches for photon-resolved image scanning microscopy [PDF]

open access: yesEPJ Web of Conferences
Fast, sensitive detector arrays make Image Scanning Microscopy (ISM) a natural successor to confocal laser scanning microscopy (CLSM), enabling super-resolution (SR) with excellent signal-to-noise ratio (SNR).
Garrè Giacomo   +2 more
doaj   +1 more source

In vivo confocal Raman spectroscopy and molecular dynamics analysis of penetration of retinyl acetate into stratum corneum [PDF]

open access: yes, 2016
Objective The purpose of this study is to elucidate the behavior of retinyl acetate in penetrating human skin without the presence of enhancers by using confocal Raman spectroscopy and molecular dynamics simulation.
Azóia, Nuno G.   +6 more
core   +1 more source

Two-dimensional electronic spectroscopy of bacteriochlorophyll a with synchronized dual mode-locked lasers

open access: yesNature Communications, 2020
Multidimensional electronic spectroscopy techniques still have many limitations. Here, the authors introduce a 2D electronic spectroscopy technique that uses broadband, synchronized mode-locked lasers to study dynamics on a wide range of timescales.
JunWoo Kim   +3 more
doaj   +1 more source

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