Designing a Broadband Pump for High-Quality Micro-Lasers via Modified Net Radiation Method.

ABSTRACT: High-quality micro-lasers are key ingredients in non-linear optics, communication, sensing and low-threshold solar-pumped lasers. However, such micro-lasers exhibit negligible absorption of free-space broadband pump light. Recently, this limitation was lifted by cascade energy transfer, in which the absorption and quality factor are modulated with wavelength, enabling non-resonant pumping of high-quality micro-lasers and solar-pumped laser to operate at record low solar concentration. Here, we present a generic theoretical framework for modeling the absorption, emission and energy transfer of incoherent radiation between cascade sensitizer and laser gain media. Our model is based on linear equations of the modified net radiation method and is therefore robust, fast converging and has low c

SUBMITTER: Nechayev S 

PROVIDER: S-EPMC5141496 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature