2 edition of Laser generation of vacuum ultraviolet radiation and fluorescence studies of nitric oxide. found in the catalog.
Laser generation of vacuum ultraviolet radiation and fluorescence studies of nitric oxide.
John Robert Banic
Written in English
Thesis (Ph.D.), Dept. of Physics, University of Toronto
|Contributions||Stoicheff, Boris P. (supervisor)|
|The Physical Object|
|Number of Pages||134|
Ultraviolet radiation lies between wavelengths of about nanometres (1 nanometre [nm] is 10 −9 metre) on the visible-light side and about 10 nm on the X-ray side, though some authorities extend the short-wavelength limit to 4 nm. In physics, ultraviolet radiation is traditionally divided into four regions: near (– nm), middle (– nm), far (– nm), and extreme (below. A.G. Molchanov, I.A. Poluektov, Y.M. Popov, The possibility of the generation of vacuum ultraviolet radiation by electron excitation of inert-gas crystals, Sov. Phys. Solid State 9, .
The nitric oxide fluorescence signal was from the transition, A^'^-X2!! (v' = 1, v" = 3), which peaked at nm . A bandpass of 4 nm was used, with the monochromator set at nm for tellurium fluorescence. Nitric oxide was formed from the decomposition of nitrate, which was introduced during the dissolution process. Stephen C. Wallace's 79 research works with 2, citations and reads, including: ChemInform Abstract: Vibrational Predissociation in S1 1-Methylindole van der Waals Clusters.
Vacuum ultraviolet lamp of the future created Date: Ap Source: American Institute of Physics (AIP) Summary: Scientists have developed a solid-state lamp that emits high-energy. Recent development of free-electron laser (FEL) component technologies should enable these devices to operate in the extreme-ultraviolet, well below nm. When fully developed, FELs represent the next generation of coherent-radiation sources with peak- and average-power outputs surpassing those of any existing, continuously tunable photon source by many orders of magnitude.
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Tunable coherent radiation has been produced in the vacuum ultraviolet spectral region using four-wave sum-frequency mixing in magnesium vapour. This source has been used for fluorescence studies of nitric oxide. The monochromaticity and intensity of the coherent radiation permitted excitation of individual rovibronic levels, and measurements of corresponding fluorescence intensity resulted in Author: John Robert Banic.
To excite the hydrogen molecules, laser radiation is produced in the vacuum UV part of the spectrum. The laser radiation is tunable between nm and nm and has a bandwith of cm−1. The wavelength of the laser radiation is calibrated by simultaneous recording of the two-photon laser induced fluorescence spectrum of nitric by: To excite the hydrogen molecules, laser radiation is produced in the vacuum UV part of the spectrum.
The laser radiation is tunable between nm and nm and has a bandwith of cm −1. The wavelength of the laser radiation is calibrated by simultaneous recording of the two-photon laser induced fluorescence spectrum of nitric by: Tunable and coherent vacuum ultraviolet radiation is now available over broad regions from to ∼60 nm.
It is generated by third harmonic and four‐wave frequency mixing in gases and metal vapors, and is of sufficient intensity for absorption and fluorescence spectroscopy. We have recently applied these sources to studies of Xe2, Kr2, and Ar2 produced by supersonic jet : Boris P.
Stoicheff. The laser induced fluorescence spectrum of LiLuF 4:Er 3+ single crystals, pumped by an F 2 pulsed discharge molecular laser at nm, was obtained in the vacuum ultraviolet (VUV) and ultraviolet (UV) regions of the spectrum at room temperature. A number of new fluorescence Cited by: To excite the hydrogen molecules, laser radiation is produced in the vacuum UV part of the spectrum.
The laser radiation is tunable between nm and nm and has a bandwith of cm The wavelength of the laser radiation is calibrated by simultaneous recording of the two-photon laser induced ﬂuorescence spectrum of nitric oxide.
The. Each non-linear step in the generation of the VUV radiation shortens the laser pulse: the 4th, 5th, and 6th anti-Stokes orders used in this inves- tigation have a full width at half maximum of 3 to 4 ns and an estimated bandwidth of cm Use- ful amounts of radiation of wavelengths as short as nm in the 8th anti-Stokes order have been gen.
Laser-stimulated fluorescence (LSF) is a next generation technique that is emerging as a way to fluoresce paleontological specimens that remain dark under typical UV. A laser’s ability to concentrate very high flux rates both at the macroscopic and microscopic levels results in specimens fluorescing in ways a standard UV bulb cannot induce.
Ultraviolet Laser Technology and Applications is a hands-on reference text that identifies the main areas of UV laser technology; describes how each is applied; offers clearly illustrated examples of UV opticalsystems applications; and includes technical data on optics, lasers, materials, and systems.
This book is unique for its comprehensive. The recent developments of vacuum ultraviolet (VUV) laser and third generation synchrotron radiation sources, together with the introduction of pulsed field ionization (PFI) schemes for photoion-photoelectron detection, have had a profound impact on the field of VUV spectroscopy and chemistry.
Owing to the mediation of near-resonant autoionizing states, rovibronic states of ions with. Individual rotational levels of the B′2Δ state (ν′ = 1 – 8) of nitric oxide have been excited using tunable, coherent, vacuum ultraviolet radiation (in the range – nm) generated by.
JOURNAL OF MOLECULAR SPECTROSCOPY() Vacuum Ultraviolet Laser Spectroscopy of Xe2 between and nm KOICHI TSUKIYAMA AND TAKAHIRO KASUYA RIKEN, The Institute of Physical and Chemical Research, Hirosawa, Wako, SaitamaJapan Vibrationally resolved fluorescence excitation spectra of jet-cooled Xe2 have.
1. Introduction. Vacuum ultraviolet (VUV) single photon ionization (SPI) of laser or ion desorbed neutrals has demonstrated sensitive detection and the capability for mass spectrometric imaging of atomic and molecular analytes [1–4].Laser desorption VUV postionization mass spectrometry (LDPI-MS) of biofilms showed improved sensitivity above 8 eV photon energy with optimal signal to.
Pulsed Laser Sources. Many ultraviolet laser sources utilize excimer lasers or Q–switched Nd: YAG solid state lasers with harmonic generation [l 12].
The hazards associated with laser beams are well known [, ], and information is available on safety standards . The pulse duration of these systems typically ranges from a few. Webster, L. Woste, and R. Zare. "Generation of UV Radiation ( nm) from Intracavity Doubling of a Single-Mode Ring Dye Laser," in Lasers and Applications.
Springer. Download Richard N. Zare's publications as a Microsoft Word document or as a pdf. Jump to: In chronological order: 1.
Zare, W. Cook, Jr., and L. Shiozawa, "X-Ray Correlation of the A-B Layer Order of Cadmium Selenide with the Sign of the Polar Axis," Nature().
The O(2p1S) atoms produced in the photolysis of O3 have been detected by a technique of laser-induced fluorescence spectroscopy with the tunable vacuum ultraviolet (VUV) laser radiation around nm. The quantum yield value for O(1S) formation is determined to be ( ± ) × in the nm photolysis of O3, which is determined by comparing the VUV laser-induced fluorescence.
Ground-state O (3Pj) and N (4Sº) atoms, nitric oxide (NO) and hydroxyl (OH) radicals, and vacuum ultraviolet (VUV) radiation emitted from an AC-excited atmospheric pressure Ar plasma jet (APPJ.
Two‐photon ionizaton studies of nitric oxide, using the vacuum ultraviolet light to probe Rydberg states and the fundamental light to ionize are also presented. Vacuum ultraviolet laser.
Effects of High Power Laser Radiation. The fluorescence of nitric oxide was excited with light from a xenon lamp. The vacuum-ultraviolet fluorescence of Kr and Xe and its dependence on gas. x:H films caused by the interaction between vacuum ultraviolet (VUV)/ultraviolet (UV) radiation and radicals in the fluorocarbon plasma was investigated by a technique with a novel sample setup of the pallet for plasma evaluation.
The simultaneous injection of UV radiation and radicals causes a dramatic etch rate enhancement of SiN x:H films.Abstract. In organic molecules, the absorption of photons of ultraviolet wavelength gives rise to electronic excitation .
At wavelengths > nm the resulting transitions are from from bonding to anti-bonding levels of the valence electrons.We investigate the feasibility of transmitting high-power, ultraviolet (UV) laser pulses through long optical fibers for laser-induced-fluorescence (LIF) spectroscopy of the hydroxyl radical (OH) and nitric oxide (NO) in reacting and non-reacting flows.
The fundamental transmission characteristics of nanosecond (ns)-duration laser pulses are studied at wavelengths of nm (OH excitation) and.