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	Methods and devices for measurements using pump-probe spectroscopy in high-q microcavities
	VOLLMER, FRANK; TOPOLANCIK, JURAJ
	2009-09-24
著作权人	PRESIDENT AND FELLOWS OF HARVARD COLLEGE
专利号	US20090237666A1
国家	美国
文献子类	发明申请
其他题名	Methods and devices for measurements using pump-probe spectroscopy in high-q microcavities
英文摘要	The use of optical microcavities, high-Q resonators and slow-light structures as tools for detecting molecules and probing conformations and measuring polarizability and anisotropy of molecules and molecular assemblies using a pump-probe approach is described. Resonances are excited simultaneously or sequentially with pump and probe beams coupled to the same microcavity, so that a pump beam wavelength can be chosen to interact with molecules adsorbed to the microcavity surface, whereas a probe beam wavelength can be chosen to non-invasively measure pump-induced perturbations. The induced perturbations are manifest due to changes of resonance conditions and measured from changes in transfer characteristics or from changes of the scattering spectra of a microcavity-waveguide system. The perturbations induced by the pump beam may be due to polarizability changes, changes in molecular conformation, breakage or formation of chemical bonds, triggering of excited states, and formation of new chemical species. Furthermore, heat may be generated due to absorption of the pump beam. Furthermore, the use resonant modes with different states of polarization allows for measurements of polarizability and its anisotropy in samples interacting with the optical device.
公开日期	2009-09-24
申请日期	2007-09-15
状态	授权
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/53962]
专题	半导体激光器专利数据库
作者单位	PRESIDENT AND FELLOWS OF HARVARD COLLEGE
推荐引用方式 GB/T 7714	VOLLMER, FRANK,TOPOLANCIK, JURAJ. Methods and devices for measurements using pump-probe spectroscopy in high-q microcavities. US20090237666A1. 2009-09-24.

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