Journal article
Collective lasing from a linear array of dielectric microspheres with gain
Optics express, Vol.20(6), pp.6598-6603
03/12/2012
DOI: 10.1364/OE.20.006598
PMID: 22418542
Abstract
We experimentally study the optical emission behavior of a linear array of dielectric microspheres with gain. The microspheres are randomly arranged and well-separated, and can only couple via radiative modes. We observe resolution-limited, ultra-narrowband modes in the longitudinal emission, which constitutes collective lasing from the entire array, inferred from the observation of a lasing threshold. The lasing modes show wavelength selectivity, wherein the lasing probability is large only in specific frequency bands while being inhibited at other wavelengths, a behavior which is independent of the degree of configurational randomness. Analysis of the frequency bands indicates the participation of Fabry-Perot resonances of the individual microspheres in the collective emission. (C) 2012 Optical Society of America
Details
- Title: Subtitle
- Collective lasing from a linear array of dielectric microspheres with gain
- Creators
- Anjani Kumar Tiwari - Tata Institute of Fundamental ResearchBalu Chandra - Tata Institute of Fundamental ResearchRavitej Uppu - Tata Institute of Fundamental ResearchSushil Mujumdar - Tata Institute of Fundamental Research
- Resource Type
- Journal article
- Publication Details
- Optics express, Vol.20(6), pp.6598-6603
- Publisher
- Optical Soc Amer
- DOI
- 10.1364/OE.20.006598
- PMID
- 22418542
- ISSN
- 1094-4087
- eISSN
- 1094-4087
- Number of pages
- 6
- Language
- English
- Date published
- 03/12/2012
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984442014902771
Metrics
9 Record Views