Terahertz beam characterization by temporal-spatial mapping with a reflecting echelon.
Opt Lett
; 48(18): 4805-4808, 2023 Sep 15.
Article
em En
| MEDLINE
| ID: mdl-37707907
ABSTRACT
A terahertz beam imaging method was proposed that involves scanning a reflecting echelon with temporal-spatial mapping inversion based on self-developed translation-scan and rotation-scan temporal-spatial mapping (TTSM and RTSM) algorithms. The beam characteristics of a terahertz time-domain spectroscopy (TDS) system, such as its size, shape, and energy distribution, were obtained. Besides the weak terahertz beam emitted from a TDS system, this scheme is also suitable for imaging large-size terahertz or laser beams in time-domain systems where existing beam imaging is impractical.
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MEDLINE
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En
Ano de publicação:
2023
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Article