OBSERVATION OF MORPHOLOGY-DEPENDENT INPUT AND OUTPUT RESONANCES IN TIME-DEPENDENT RAMAN-SPECTRA OF OPTICALLY LEVITATED MICRODROPLETS

被引：43

作者：

SCHASCHEK, K ^{[1
]}

POPP, J ^{[1
]}

KIEFER, W ^{[1
]}

机构：

[1] UNIV WURZBURG,INST PHYS CHEM,MARCUSSTR 9-11,W-8700 WURZBURG,GERMANY

来源：

JOURNAL OF RAMAN SPECTROSCOPY | 1993年 / 24卷 / 02期

关键词：

D O I：

10.1002/jrs.1250240203

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Using a highly efficient Raman set-up, which allows a Raman spectrum to be recorded in less than 1 s, morphology-dependent resonances in optically levitated microdroplets of water-glycerol mixtures were studied. In addition to the output resonances, where the Raman frequency coincides with an electromagnetic sphere resonance, input resonances could also be demonstrated. The latter are observed when the evaporating droplet reaches a radius which, together with the wavelength of the incident laser light, fulfils the resonance condition for the cavity modes of a sphere. Preliminary results for droplet size change during evaporation of a particular droplet in the micrometre range are presented.

引用

页码：69 / 75

页数：7

共 35 条

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