Non-locality and collective emission in disordered lasing resonators

Marco Leonetti; Claudio Conti; Cefe Lopez

doi:10.1038/lsa.2013.44

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Non-locality and collective emission in disordered lasing resonators

Original Articles

- Non-locality and collective emission in disordered lasing resonators
- Non-locality and collective emission in disordered lasing resonators
- LSA 2013年2卷第3-4期
- Affiliations：
  
  1.ISC-CNR, UOS Sapienza, 00185 Roma, Italy
  2.Institute for Material Science Madrid (ICMM-CSIC), 28049 Madrid, Spain
  3.Department of Physics, University Sapienza, I-00185 Roma, Italy
- Author bio：
  
  Dr M Leonetti, ISC-CNR UOS, La Sapienza, Piazzale Aldo Moro 5, 00185 Roma, Italy Email: marco.leonetti@roma1.infn.it
- Funds：
- DOI：10.1038/lsa.2013.44
  中图分类号：
- 纸质出版日期：2013-12，
  
  网络出版日期：2013-08-30，
  
  收稿日期：2012-10-18，
  
  修回日期：2013-02-28，
  
  录用日期：2013-03-18
- Accepted：
Scan QR Code
Non-locality and collective emission in disordered lasing resonators[J]. LSA, 2013,2(3-4).

Leonetti, M., Conti, C. & Lopez, C. Non-locality and collective emission in disordered lasing resonators. Light: Science & Applications, 2, e88 (2013).
Non-locality and collective emission in disordered lasing resonators[J]. LSA, 2013,2(3-4). DOI： 10.1038/lsa.2013.44.

Leonetti, M., Conti, C. & Lopez, C. Non-locality and collective emission in disordered lasing resonators. Light: Science & Applications, 2, e88 (2013). DOI： 10.1038/lsa.2013.44.

摘要

Abstract

Random lasing is observed in optically active resonators in the presence of disorder. As the optical cavities involved are open

the modes are coupled

and energy may pour from one state to another provided that they are spatially overlapping. Although the electromagnetic modes are spatially localized

our system may be actively switched to a collective state

presenting a novel form of non-locality revealed by a high degree of spectral correlation between the light emissions collected at distant positions. In a nutshell

light may be stored in a disordered nonlinear structure in different fashions that strongly differ in their spatial properties. This effect is experimentally demonstrated and theoretically explained in titania clusters embedded in a dye

and it provides clear evidence of a transition to a multimodal collective emission involving the entire spatial extent of the disordered system. Our results can be used to develop a novel type of miniaturized

actively controlled all-optical chip.

关键词

Keywords

collective emissiondisordernanophotonicsrandom lasing

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