Laser Photothermal Analysis of Magnetoelectric Materials

Penchev, S.; Pencheva, V.; Nedkov, I.; Kutzarova, T.; Naboko, V.

doi:10.1063/1.3322448

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Utilization Of High-power Broadband Laser Diodes For Dial Ga...1

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2022

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“…The recent advances of spectral applications of broadband lasers in atmospheric optics have been facilitated by the accumulation of accurate spectroscopic data, in particular HITRAN database of molecular absorption. We contributed to the pioneering studies [3][4][5][6] utilizing high-power laser diodes for remote sensing of atmospheric major greenhouse gases. As a main goal, the integral absorption of laser radiation modulated by multiple resonance lines within a broader spectral band is less critical than measurement of the laser intensity within an individual absorption line.…”

Section: Utilization Of High-power Broadband Laser Diodes For Dial Ga...mentioning

confidence: 99%

Development of lidar for remote methane sensing using an optimal configuration of high-power laser diodes

Pencheva

Penchev

Dreischuh

2022

J. Phys.: Conf. Ser.

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A broadband differential absorption lidar (DIAL) is developed making us of the properties of high-power pulsed laser diodes for the purpose of monitoring methane, a major atmospheric greenhouse biogas. The detection range is optimized for the CH4 Q-branch 2v3 overtone spectrum centered at 1.667 μm and mixed with water-vapor absorption bands of. The resonance absorption evaluated of the DIAL signal is an integral sum of the multiple CH4 resonance absorption lines modulating the characteristic broad laser line and simultaneously compensating the interfering water-vapor absorption. A compact DIAL scheme is developed using an optimal configuration of high-power laser diodes matching the selected spectral parameters.

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Section: Utilization Of High-power Broadband Laser Diodes For Dial Ga...mentioning

confidence: 99%