期刊
LASER & PHOTONICS REVIEWS
卷 11, 期 6, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/lpor.201700212
关键词
metallic nanoparticle; miniaturization; random laser; spaser; surface plasmon
资金
- Office of Naval Research [MURI N00014-13-0649]
- DARPA Extreme Optics and Imaging Program (EXTREME)
- National Natural Science Foundation of China [11774188]
- Incubation Program of Universities' Preponderant Discipline of Shandong Province, China [03010304]
- Mountain Tai Young Scholarship [23170504]
Owing to exotic optical responses, metallic nanoparticles and nanostructures are finding broad applications in laser science, leading to numerous design variations of plasmonic nanolasers. Nowadays, two of the most intriguing plasmonic nanolasing devices are spasers and random lasers. While a spaser is based on a single metallic nanoparticle resonator with the optical feedback provided by the localized surface plasmon resonance, the operation of a random laser relies on multiple light scattering within randomly distributed metallic nanoparticles. In this paper, an up-to-date review on the applications of metallic nanoparticles in spasers and random lasers is provided. Principles of a random spaser, a device combining the features of a spaser and a random laser, are briefly discussed as well. The paper is focused on major theoretical and experimental approaches to control the core metrics of lasing performance, including threshold, resonant wavelength, and emission directionality. The applications of spasers and random lasers in the fields of sensing and imaging are also mentioned. Finally, the challenges and future perspectives in this area of research are discussed.
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