Multipulse-induced spectroscopy method and device based on femtosecond plasma grating
US12276613B2 · kind B2 · utility
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7References
14Claims
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Assignees
- CHONGQING INSTITUTE OF EAST CHINA NORMAL UNIVERSITY
- EAST CHINA NORMAL UNIVERSITY
- YUNNAN HUAPU QUANTUM MATERIAL CO., LTD
- ROI OPTOELECTRONICS TECHNOLOGY CO, LTD.
- CHONGQING HUAPU SCIENTIFIC INSTRUMENT CO., LTD.
- Chongqing Huapu Intelligent Equipment Co., Ltd.
- GUANGDONG ROI OPTOELECTRONICS TECHNOLOGY CO., LTD.
Inventors
Key dates
| Filing date | Sep 30, 2022 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Apr 25, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/1006
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multipulse-induced spectroscopy method based on a femtosecond plasma grating includes: pre-exciting a sample on a stage by providing a femtosecond pulse to form the femtosecond plasma grating; providing a post-pulse on the sample at an angle to excite the sample to generate a plasma, wherein the post-pulse comprises one or more femtosecond pulses, there is a time interval between the femtosecond pulse and the post-pulse, and the time interval is less than a lifetime of the femtosecond plasma grating; and receiving and analyzing a fluorescence emitted from the plasma to determine element information of the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.