Publication

INFRARED-SPECTROSCOPY OF VIBRATIONALLY EXCITED HONO2 - SHEDDING LIGHT ON THE DARK STATES OF INTRAMOLECULAR VIBRATIONAL-ENERGY REDISTRIBUTION

Thomas Rizzo
1991
Journal Articles

Abstract

Infrared predissociation spectroscopy of nitric acid subsequent to vibrational overtone excitation reveals vibrational state mixing of the highly excited levels and probes the character of the coupled dark states. A visible dye laser excites the 4

Official source

https://infoscience.epfl.ch/entities/publication/08f735af-be65-4866-974e-81a76886a0c1

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Thomas Rizzo
1991
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/08f735af-be65-4866-974e-81a76886a0c1

About this result

Related concepts (32)

Infrared spectroscopy

Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) is the measurement of the interaction of infrared radiation with matter by absorption, emission, or reflection. It is used to study and identify chemical substances or functional groups in solid, liquid, or gaseous forms. It can be used to characterize new materials or identify and verify known and unknown samples. The method or technique of infrared spectroscopy is conducted with an instrument called an infrared spectrometer (or spectrophotometer) which produces an infrared spectrum.

Infrared

Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than those of visible light and shorter than radio waves. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around 1 millimeter (300 GHz) to the nominal red edge of the visible spectrum, around 700 nanometers (430 THz). IR is commonly divided between longer-wavelength thermal infrared that is emitted from terrestrial sources and shorter-wavelength near-infrared that is part of the solar spectrum.

Near-infrared spectroscopy

Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum (from 780 nm to 2500 nm). Typical applications include medical and physiological diagnostics and research including blood sugar, pulse oximetry, functional neuroimaging, sports medicine, elite sports training, ergonomics, rehabilitation, neonatal research, brain computer interface, urology (bladder contraction), and neurology (neurovascular coupling).

Related publications (32)

INFRARED-SPECTROSCOPY OF VIBRATIONALLY EXCITED HONO2 - SHEDDING LIGHT ON THE DARK STATES OF INTRAMOLECULAR VIBRATIONAL-ENERGY REDISTRIBUTION

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Near Infrared Spectroscopy and Chemometrics for in situ Process Monitoring

FACE-ing the future of single-pixel complex-field microscopy beyond the visible spectrum

Quantifying Inter- and Intramolecular Interactions in Liquids with Correlated Vibrational Spectroscopy: Case Study of CCl 4 and CH 3 CN