Enhanced terahertz vibrational absorption spectroscopy using an integrated high-Q resonator
Zhibo Hou,
Liao Chen,
Rongwu Liu
et al.
Abstract:The terahertz (THz) absorption spectrum is a powerful method to identify substances. The improvement focuses on sensitivity and recovery ability. Here, we demonstrate enhanced THz vibrational absorption spectroscopy based on an on-chip THz whispering gallery mode resonator (THz-WGMR). A THz-WGMR with high Q can store energy and enhance the interaction between the THz waves and the target substances to capture the unique absorption fingerprint information. Therefore, it possesses significant sensitivity to iden… Show more
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