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Updated: May 6, 2026

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放大频率向上转换的红外信号,使用分子光机械腔体

Fen Zou1,2, Lei Du3, Yong Li1

  • 1Center for Theoretical Physics & School of Physics and Optoelectronic Engineering, Hainan University, Haikou 570228, China.

Physical review letters
|April 29, 2024
PubMed
概括

这项研究引入了一种放大方法,以增强弱红外信号转换为可见光在分子光学机械系统. 这种新的方法将信号强度提高了1000倍以上,使得上转换信号的检测更好.

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IR Absorption Frequency: Hybridization01:21

IR Absorption Frequency: Hybridization

Hydrocarbons such as alkanes, alkenes, and alkynes show characteristic C–H stretching absorption bands. These IR stretching frequencies depend on the hybridization of the involved carbon atom and can be explained in terms of the s character of each hybridized atomic orbital.
Among the sp, sp2, and sp3 hybridized orbitals, sp orbitals have the maximum s character (50%). Consequently, the electrons are held more closely to the nucleus, resulting in stronger and shorter C–H bonds that...
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