Modification of cavity ring-up spectroscopy

被引：2

作者：

Shen, Meng-Chong

Ye, Ming-Yong ^{[1
]}

Lin, Xiu-Min

机构：

[1] Fujian Normal Univ, Fujian Prov Key Lab Quantum Manipulat & New Energ, Coll Phys & Energy, Fuzhou 350117, Peoples R China

来源：

PHYSICAL REVIEW A | 2022年 / 105卷 / 03期

基金：

中国国家自然科学基金;

关键词：

NANOPARTICLES; RESONATORS; LASER;

D O I：

10.1103/PhysRevA.105.033509

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cavity ring-up spectroscopy (CRUS) can be used to sense ultrafast phenomena with a timescale of a nanosecond and it has been experimentally demonstrated in whispering-gallery-mode (WGM) microresonators. Here, we present a modification of CRUS in which the intensity of the monochromatic laser used to excite a WGM microresonator is changed from one nonzero value to another nonzero value within a very short time. The modification doubles the sampling rate of CRUS at almost no cost, which is important in ultrafast sensing. We first give a theory of the modified CRUS and then show its experimental observation. The obtained results make the developing CRUS more complete.

引用

页数：6

共 37 条

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