A novel high-brightness broadband light-source technology from the VUV to the IR

Horne, Stephen F.; Smith, Don; Besen, M.; Partlow, M.; Stolyarov, Daniil; Zhu, Hui‐Ling; Holber, W. M.

doi:10.1117/12.850269

Cited by 20 publications

(10 citation statements)

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“…58, Figures 5 and 6). Point sources can be characterized by radiant emittance or irradiance only, not by radiance.…”

Section: Continuous Laboratory Sourcesmentioning

confidence: 96%

“…35 Continuous laser-driven light sources that generate temperatures up to 10 000 K in high-pressure xenon discharge became commercially available recently. 58 All open-beam EQ-99 and EQ-1500 series products of Energetiq Technology, Inc., are specified by the manufacturer as point sources. Their light emitting plasma is about 140 µm by 60 µm FWHM and spatially nonuniform (see Figure 5 of Ref.…”

Section: Continuous Laboratory Sourcesmentioning

confidence: 99%

“…Their light emitting plasma is about 140 µm by 60 µm FWHM and spatially nonuniform (see Figure 5 of Ref. 58), with low total optical power. The only available calibration source of this type, Energetiq EQ-99CAL, is characterized for absolute spectral irradiance only, with uncertainty of 5% to 12% depending on the wavelength.…”

Section: Continuous Laboratory Sourcesmentioning

confidence: 99%

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Contributed Review: Absolute spectral radiance calibration of fiber-optic shock-temperature pyrometers using a coiled-coil irradiance standard lamp

Fat’yanov

Asimow

2015

Review of Scientific Instruments

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Development of a fast fiber-optic two-color pyrometer for the temperature measurement of surfaces with varying emissivities Rev. Sci. Instrum. 72, 3366 (2001); 10.1063/1.1384448 This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitationnew. We describe an accurate and precise calibration procedure for multichannel optical pyrometers such as the 6-channel, 3-ns temporal resolution instrument used in the Caltech experimental geophysics laboratory. We begin with a review of calibration sources for shock temperatures in the 3000-30 000 K range. High-power, coiled tungsten halogen standards of spectral irradiance appear to be the only practical alternative to NIST-traceable tungsten ribbon lamps, which are no longer available with large enough calibrated area. However, non-uniform radiance complicates the use of such coiled lamps for reliable and reproducible calibration of pyrometers that employ imaging or relay optics. Careful analysis of documented methods of shock pyrometer calibration to coiled irradiance standard lamps shows that only one technique, not directly applicable in our case, is free of major radiometric errors. We provide a detailed description of the modified Caltech pyrometer instrument and a procedure for its absolute spectral radiance calibration, accurate to ±5%. We employ a designated central area of a 0.7× demagnified image of a coiled-coil tungsten halogen lamp filament, cross-calibrated against a NIST-traceable tungsten ribbon lamp. We give the results of the cross-calibration along with descriptions of the optical arrangement, data acquisition, and processing. We describe a procedure to characterize the difference between the static and dynamic response of amplified photodetectors, allowing time-dependent photodiode correction factors for spectral radiance histories from shock experiments. We validate correct operation of the modified Caltech pyrometer with actual shock temperature experiments on single-crystal NaCl and MgO and obtain very good agreement with the literature data for these substances. We conclude with a summary of the most essential requirements for error-free calibration of a fiber-optic shock-temperature pyrometer using a high-power coiled tungsten halogen irradiance standard lamp. C 2015 AIP Publishing LLC.[http://dx

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“…58, Figures 5 and 6). Point sources can be characterized by radiant emittance or irradiance only, not by radiance.…”

Section: Continuous Laboratory Sourcesmentioning

confidence: 96%

Section: Continuous Laboratory Sourcesmentioning

confidence: 99%

Section: Continuous Laboratory Sourcesmentioning

confidence: 99%

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Contributed Review: Absolute spectral radiance calibration of fiber-optic shock-temperature pyrometers using a coiled-coil irradiance standard lamp

Fat’yanov

Asimow

2015

Review of Scientific Instruments

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“…A recent advance has been the development of the laser driven plasma light source. 8 In this source, a CW near infrared (NIR) laser of typically 50 W is focused with a high numerical aperture lens into a fused silica bulb filled with high pressure rare gas. Following the initial ignition of plasma in the bulb by a traditional arc lamp igniter, the highly focused NIR laser beam is absorbed by the plasma and heats the medium to a very high temperature, at which point the initiation arc is terminated and the plasma is self sustaining.…”

Section: Introductionmentioning

confidence: 99%

A stigmatic ultraviolet-visible monochromator for use with a high brightness laser driven plasma light source

Feng

Nasiatka

Wong

et al. 2013

Review of Scientific Instruments

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Laser driven plasma light sources offer highly intense output in the UV-visible region combined with a source size as small as 100 μm. In order to effectively use the small source size in high brightness applications, a stigmatic monochromator and focusing system must be used. Here we describe a simple brightness preserving optical system that should be useful across a broad range of applications. The output flux of this system is between 6 × 10(11) ph∕s and 4 × 10(12) ph∕s with a spectra resolution of 1.7 nm and field spot size of 0.1 mm from the UV to the VIS spectra range.

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“…Infrared (IR) and Raman spectroscopy's have been widely used to detect the vibrational frequencies of chemical functional compounds in diverse materials, including polymers, semiconductors, pharmaceuticals, and others [1][2][3][4]. Both the biomedical optical spectroscopy techniques not only provide the chemical information for all samples but also offer chemical fingerprinting services for different analytical results.…”

Section: Introductionmentioning

confidence: 99%

Biomedical optical spectroscopic techniques to characterize medicinal drug Fibril-SF powder

Gadyam

Sivasubramanian

2013

Int J of Biomed & Adv Res

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The experimental results for medicinal drug Fibril-SF were carried out with the help of Biomedical medical optical spectroscopic techniques such as UV/Visible, FTIR,FT-Raman. The spectral analysis indicated that the specific functional groups of the drug materials have almost the same chemical characteristics like its molecular formula. The chemical compounds such as N=C=O, -N=C=S,-N=C=N-,-N₃,C-C,C-H,C=C,S-H,S-N,CH₃ and CH₂ are present.

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A novel high-brightness broadband light-source technology from the VUV to the IR

Cited by 20 publications

References 0 publications

Contributed Review: Absolute spectral radiance calibration of fiber-optic shock-temperature pyrometers using a coiled-coil irradiance standard lamp

Contributed Review: Absolute spectral radiance calibration of fiber-optic shock-temperature pyrometers using a coiled-coil irradiance standard lamp

A stigmatic ultraviolet-visible monochromator for use with a high brightness laser driven plasma light source

Biomedical optical spectroscopic techniques to characterize medicinal drug Fibril-SF powder

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