Highly Collimated Lasing Emission from a Peanut-Shaped Micro-Cavity

Author

Xu, Lei ; Ling, Tao ; Shang, Lei ; Song, Qinghai ; Wang, Wencheng ; Liu, Liying ; Lee, Soo-Young ; Rim, Sunghwan ; Kim, Chil-Min

Author_Institution

Dept. of Opt. Sci. & Eng., Fudan Univ., Shanghai

Volume

1

fYear

2006

fDate

18-22 June 2006

Firstpage

65

Lastpage

66

Abstract

Highly collimated lasing from a series of peanut-shaped micro-cavities were observed. The lowest divergence is about 1.2deg which is as small as the pure diffraction divergence of a plane wave propagating through an opening of the cavity size. It is shown that the lensing effect of the circular boundary plays a crucial role in generating the highly collimated lasing emissions. From ray and wave dynamic analyses, we find that the peanut-shaped micro-cavity is optimal for the lasing emission of very narrow divergence

Keywords

dye lasers; laser beams; light diffraction; microcavity lasers; ring lasers; solid lasers; stimulated emission; diffraction divergence; dye-doped microring cavities; highly collimated lasing; lasing emission; lensing effect; narrow divergence lasing; organic-inorganic hybrid glass materials; peanut-shaped microcavity; plane wave propagation; ray dynamic analyses; wave dynamic analyses; Biomedical optical imaging; Coatings; Optical collimators; Optical control; Optical devices; Optical filters; Optical materials; Optimized production technology; Resonance; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2006 International Conference on

Conference_Location

Nottingham

Print_ISBN

1-4244-0235-2

Electronic_ISBN

1-4244-0236-0

Type

conf

DOI

10.1109/ICTON.2006.248225

Filename

4013639