Theoretical and experimental study of ultraviolet broadband laser amplification using Ce:LiCAF crystal

Nguyen, Diep Van; Cadatal-Raduban, Marilou; Nguyen, T.; Pham, Duong Van; Dinh, Trung Van; Sarukura, Nobuhiko; Pham, Minh Hong

doi:10.1016/j.optcom.2022.129165

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Measurement Of So 2 Gas Density Using Differential Optical A...1

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2024

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“…Excitation laser: The laser system has been developed and reported in Sec. 2 [20]. To increase the absorption of SO 2 gas, the laser beam will be guided through the chambers twice by aluminum-plated mirrors R 1 and R 2 with a high reflection coefficient of over 90% in the wavelength range 280 to 320 nm.…”

Section: Measurement Of So 2 Gas Density Using Differential Optical A...mentioning

confidence: 99%

Development of broadband ultraviolet pulsed laser using Ce:LiCAF crystal to determine SO\(_2\) gas concentration by differential absorption spectroscopy

Pham,

Nguyen,

Pham

et al. 2024

Comm. Phys.

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Earth’s atmosphere is a mixture of many gases which include pollutants such as SO2, NO2, NO, and O3 that have absorption in the ultraviolet (UV) wavelength region. Therefore, the development of broadband UV laser sources that are useful in a differential absorption spectroscopy (DOAS) system for environmental research is necessary. In this research, we present the DOAS system using the Ce:LiCAF laser for determining SO2 gas concentration in the atmosphere. The Ce:LiCAF laser has a full width at half maximum of 2 nm with a wavelength range from 286 to 291 nm and a peak wavelength of 288.5 nm. The results show that the DOAS system accurately determines the gas concentration with a measurement error of 6 %. This result can serve as the basis for developing practical DOAS systems with the ability to monitor a wide range of gasses and survey many other types of pollutants.

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Section: Measurement Of So 2 Gas Density Using Differential Optical A...mentioning

confidence: 99%

Development of broadband ultraviolet pulsed laser using Ce:LiCAF crystal to determine SO\(_2\) gas concentration by differential absorption spectroscopy

Pham,

Nguyen,

Pham

et al. 2024

Comm. Phys.

View full text Add to dashboard Cite

show abstract

Theoretical and experimental study of ultraviolet broadband laser amplification using Ce:LiCAF crystal

Cited by 1 publication

References 33 publications

Development of broadband ultraviolet pulsed laser using Ce:LiCAF crystal to determine SO\(_2\) gas concentration by differential absorption spectroscopy

Development of broadband ultraviolet pulsed laser using Ce:LiCAF crystal to determine SO\(_2\) gas concentration by differential absorption spectroscopy

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