학술논문
Light in the darkness
Document Type
Brief Communication
Author
Source
Nature Physics. 18(11):1271-1272
Subject
Language
English
ISSN
1745-2473
1745-2481
1745-2481
Abstract
Laser light is usually limited to the same wavelength range as the spontaneous emission of the active material. A judicious choice of dielectric coatings on the cavity has now enabled laser emission far beyond the spectral range of the gain medium.