Simultaneous measurement of gas temperature and pressure based on Rayleigh–Brillouin​ scattering in kinetic region of less than one standard atmospheric pressure

Wang, Jun; Pang, Jingzhe; Chen, Ning; Qi, Hao; Liu, Jingjing; Qing, Yan; Wang, Li; Hua, Dengxin

doi:10.1016/j.optcom.2020.126721

Cited by 3 publications

(1 citation statement)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Laser Rayleigh scattering [13] has over the last decades become one of the most popular linear diagnostic tools for RBS lineshape measurement. Depending on the employed scheme, observation of the linear RBS may be performed in different ways, ranging from spontaneous RBS (SRBS) [3,5,14,15] to filtered Rayleigh scattering (FRS) [16].…”

Section: Introductionmentioning

confidence: 99%

Torr-level, seedless, non-resonant velocity distribution function measurement with a dual-color, single-shot coherent Rayleigh–Brillouin scattering scheme

Bak

Randolph

Gerakis

2023

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

A two order of magnitude spectral acquisition improvement in velocity distribution function (VDF) measurement is demonstrated with a novel single-shot, dual-color coherent Rayleigh-Brillouin scattering (CRBS) scheme. By performing this non-resonant and seedless spectral diagnostic technique, capable of obtaining a spectrum in ~300 ns, we demonstrate accurate temperature (ranging from 300 K to 500 K) and pressure (ranging from 760 Torr down to 1 Torr) measurement capabilities, for a variety of atomic, molecular and multispecies gases. This demonstrated gas thermodynamic characterization capability of the dual-color CRBS scheme over broad ranges of pressure and temperature for a variety of gases is anticipated to be of great interest to a plethora of fields, ranging from aerospace applications to low-temperature plasmas, providing with an accurate measurement of physical properties of neutral particles, for a range of gases.

show abstract

Section: Introductionmentioning

confidence: 99%

Torr-level, seedless, non-resonant velocity distribution function measurement with a dual-color, single-shot coherent Rayleigh–Brillouin scattering scheme

Bak

Randolph

Gerakis

2023

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

Development of a Rayleigh–Brillouin scattering spectrometer for fast high-gas-temperature measurements

Pi,

Wu,

Yan

et al. 2024

Opt. Lett.

View full text Add to dashboard Cite

We proposed a Rayleigh–Brillouin scattering (RBS) spectrometer based on a virtually imaged phased array (VIPA) for fast measurements of high-gas temperature. We measured the RBS spectra of air in the temperature range of 374 to 1073 K with an acquisition time of 7 s. We used the Tenti S6 model to fit the spectra and retrieve the absolute temperature values. The root mean square errors of spectra fit residual were less than 3.05%, and the absolute error of the retrieved temperature was less than 39 K. This study demonstrated the ability of the RBS spectrometer to realize fast high-temperature measurement and its potential for combustion control applications.

show abstract

Absolute detection of atmospheric temperature by using a scanning Fabry-Pérot interferometer in high spectral resolution lidar

et al. 2021

View full text Add to dashboard Cite

In order to achieve a high signal-to-noise ratio by using small laser energy and telescope aperture, we present a detection method based on Rayleigh-Brillouin scattering (RBS) for the measurement of atmospheric temperature without response functions and calibration procedures by using high spectral resolution lidar (HSRL). Different from the traditional HSRL, a Fabry-Pérot interferometer (FPI) with a continuous tunable cavity and polarization optical scheme are employed in a high spectral resolution filter. In order to continuously change the resonant frequency of the FPI, an electro-optical crystal of potassium dideuterium phosphate (DKDP) with two ring electrodes is used as a continuous tunable cavity in the FPI. At each scanned frequency point corresponded with the resonant frequency of the FPI, the received signals of four discrete points on RBS are obtained. Atmospheric temperature is inverted by using a RBS model. The polarization optical scheme is used to suppress the solar background light, and improve the utilization of return signals. In detection experiment of atmospheric temperature, the detection height is 2 km at night and 1.5 km during the day by using a pulsed energy of 30 mJ and telescope diameter of 250 mm. The results are in good agreement with the data detected by radiosonde.

show abstract

Simultaneous measurement of gas temperature and pressure based on Rayleigh–Brillouin scattering in kinetic region of less than one standard atmospheric pressure

Cited by 3 publications

References 20 publications

Torr-level, seedless, non-resonant velocity distribution function measurement with a dual-color, single-shot coherent Rayleigh–Brillouin scattering scheme

Torr-level, seedless, non-resonant velocity distribution function measurement with a dual-color, single-shot coherent Rayleigh–Brillouin scattering scheme

Development of a Rayleigh–Brillouin scattering spectrometer for fast high-gas-temperature measurements

Absolute detection of atmospheric temperature by using a scanning Fabry-Pérot interferometer in high spectral resolution lidar

Contact Info

Product

Resources

About

Simultaneous measurement of gas temperature and pressure based on Rayleigh–Brillouin​ scattering in kinetic region of less than one standard atmospheric pressure

Cited by 3 publications

References 20 publications

Torr-level, seedless, non-resonant velocity distribution function measurement with a dual-color, single-shot coherent Rayleigh–Brillouin scattering scheme

Torr-level, seedless, non-resonant velocity distribution function measurement with a dual-color, single-shot coherent Rayleigh–Brillouin scattering scheme

Development of a Rayleigh–Brillouin scattering spectrometer for fast high-gas-temperature measurements

Absolute detection of atmospheric temperature by using a scanning Fabry-Pérot interferometer in high spectral resolution lidar

Contact Info

Product

Resources

About

Simultaneous measurement of gas temperature and pressure based on Rayleigh–Brillouin scattering in kinetic region of less than one standard atmospheric pressure