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Measurements of toluene and other aromatic hydrocarbons by differential-absorption LIDAR in the near-ultraviolet
The first measurements of toluene by differential-absorption LIDAR in the near-ultraviolet spectral region are reported. A pulse energy of 4.5 mJ was used for the measurement, generated byExpand
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Measurement of the speed of light II. Wavelength measurements and conclusion
Wavelength measurements have been carried out on the radiation at 9.3 pm from a stabilized CO2 laser. The wavelength in vacuum was determined as 9 317 246 348 femtometres (fm), with a standard errorExpand
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A high-gain optical parametric amplifier tunable between 3.27 and 3.65 μm
Abstract Pulsed optical parametric amplification has been demonstrated in lithium niobate pumped at a wavelength of 1.064 μm. A small-signal gain of 18 has been achieved at a signal wavelength ofExpand
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High-resolution spectroscopy of SO2 using a frequency-doubled, continuous-wave dye laser
Abstract The SO 2 molecule is of considerable interest in the context of atmospheric pollution, and in many laser monitoring techniques the ultraviolet absorption band at 300 nm is used to determineExpand
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Application of nonlinear devices to optical frequency measurement
Reviews nonlinear devices that have been used or are potentially useful for laser frequency measurement in the optical region, extending from the submillimetre to the ultraviolet. The devices areExpand
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Experimental and theoretical studies related to a dye laser differential lidar system for the determination of atmospheric So2 and NO2 concentrations
Abstract Laboratory measurements of the absorption coefficients of NO2 at wavelengths suitable for the operation of differential absorption lidar (DIAL) systems, at around 446 nm and 489 nm areExpand
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High-resolution spectroscopy of SO2 using a frequency-doubled pulsed dye laser, with application to the remote sensing of atmospheric pollutants
Abstract Accurate, high-resolution measurements have been made of the SO 2 absorption spectrum in the ultraviolet from 297.0 to 301.0 nm, using a frequency-doubled dye laser of bandwidth 2 × 10 -3Expand
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Absolute frequencies of the methane-stabilized HeNe laser (3.39μm) and the CO2, R(32) stabilized laser (10.17μm)
The frequencies of two infrared lasers stabilized by molecular absorption lines have been measured by using a frequency-synthesis chain extending down to the caesium frequency standard. The measuredExpand
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High-efficiency infrared generation by difference-frequency mixing using tangential phase matching
Abstract Measurements have been made of the energy generated in the wavelength region 3.3 to 4.0 μm, by difference-frequency mixing between a tunable dye laser and a Nd: YAG laser in lithium niobate.Expand
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