Interferometric determination of the refractive index of carbon dioxide in the ultraviolet region

Bideau-Méhu, A.; Guern, Y.; Abjean, R.; Johannin-Gilles, A.

doi:10.1016/0030-4018(73)90289-7

Cited by 88 publications

(40 citation statements)

References 5 publications

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“…However, these gases exhibit sufficient dispersion at shorter wavelengths that use of Birch's values at ultraviolet conditions could introduce significant error. We therefore used additional data extending far into the UV for N 2 [34], O 2 [35], and CO 2 [36,37], and covering a smaller range for Ar [38], which exhibits less dispersion. Data at wavelengths below 190 nm were not used, since that is roughly the limit of water's transparency.…”

Section: Component Refractivitiesmentioning

confidence: 99%

Effect of Dissolved Air on the Density and Refractive Index of Water

2005

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The effect of dissolved air on the density and the refractive index of liquid water is studied from 0 to 50 • C. The density effect is calculated from the best available values of Henry's constants and partial molar volumes for the components of air; the results are in agreement with some previous experimental studies, but not others. The refractive-index effect is calculated as a function of wavelength from the same information, plus the refractivities of the atmospheric gases. Experimental measurements of the refractive-index effect are reported at both visible and ultraviolet wavelengths; the measured and calculated values are in reasonable agreement. The magnitude of the refractive-index change, while small, is several times larger than a previous estimate in the literature.

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Section: Component Refractivitiesmentioning

confidence: 99%

Effect of Dissolved Air on the Density and Refractive Index of Water

2005

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“…We use values of the refractive index for CO 2 in the visible range from the literature 18 , and assume that the dependence of the refractive index on the gas pressure follows:…”

Section: Methodsmentioning

confidence: 99%

“…Angular cross-sections at different wavelengths of signal photons are fitted by equation (2) with , being the only fitting parameters (LevenbergMarquardt algorithm, confidence level ~ 95%). Values of the refractive index of CO 2 in the visible range are taken from the literature 18 , and we take their dependence on pressure to be linear.…”

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confidence: 99%

Infrared Spectroscopy with Visible Light

Krivitsky

Paterova

Lung

et al. 2016

The 8th International Symposium on Ultrafast Phenomena and Terahertz Waves

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Spectral measurements in the infrared (IR) optical range provide unique fingerprints of materials which are useful for material analysis, environmental sensing, and health diagnostics 1 Entangled photons continue to play a crucial role in advancing many areas of quantum technologies, including cryptography 4,5 , computing 6,7 and metrology 8,9 . They can be obtained using a variety of methods, with SPDC in non-linear optical crystals, being well established 10 .We consider a specific type of interference technique, referred to as a non-linear interferometry, which is analogue to a conventional Mach-Zehnder or Young interferometer but with the two splitting mirrors being substituted with two SPDC crystals 3 . In a non-linear interferometer, two SPDC crystals are pumped by a common laser, so that down-converted photons (signal and idler) from one crystal are injected into the second crystal. Signal and idler photons from the two crystals interfere and produce a distinctive interference pattern in frequency and spatial domains. Depending on experimental configuration one can observe interference either in intensity or in the second-order correlation function [11][12][13] .One remarkable feature of non-linear interferometers is that the interference pattern for signal photons is determined by a total phase, acquired by all three propagating photons: the signal, the idler and the pump 2,3 . This is different than conventional interferometry, where the interference pattern is defined solely by the phase of the signal photon. From the interference pattern of the signal photon, it is possible to infer a relative phase of an idler photon. Actual detection of idler photons is not required. This scheme has found its applications in imaging

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“…3. The CO 2 refractive index at 0°C and 1 bar has been measured by Bideu-Mehu et al in the interesting ultraviolet region of the Cherenkov radiation [10]. For k = 380 nm, the refractive index of CO 2 is expected to be n À 1 ¼ 461 Á 10 À6 [11].…”

Section: Tuning the Cherenkov Countersmentioning

confidence: 99%

Estimation of the R134a gas refractive index for use as a Cherenkov radiator, using a high energy charged particle beam

Charitonidis

Karyotakis

Gatignon

2017

Nuclear Instruments and Methods in Physics Research Section B:

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a b s t r a c tGases with relatively high refractive index, n À 1 ! 500 Â 10 À6 at atmospheric pressure, giving a satisfactory photoelectron yield at relatively low pressures ( 5bar) are rare. These gases are often the only practical solution for low momentum particle identification in conventional secondary beam lines. The refractive index of R134a, one of the most common gases available to the physics community, has never been measured or reported. In the present note, the results of a dedicated experiment to estimate the refractive index of R134a, using mixed hadron/electron beams in the range 0.5-10 GeV are presented.

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Interferometric determination of the refractive index of carbon dioxide in the ultraviolet region

Cited by 88 publications

References 5 publications

Effect of Dissolved Air on the Density and Refractive Index of Water

Effect of Dissolved Air on the Density and Refractive Index of Water

Infrared Spectroscopy with Visible Light

Estimation of the R134a gas refractive index for use as a Cherenkov radiator, using a high energy charged particle beam

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