Two-photon pumped spaser based on the CdS/ZnS core/shell quantum dot–mesoporous silica–metal structure
Abstract
The spaser (a plasmonic nanolaser) has rapidly advanced as a subwavelength light source candidate. Herein, we introduce a spaser based on a quantum-dot, mesoporous-oxide, and metal structure from top to bottom consisting of CdS/ZnS core/shell quantum dots, a mesoporous silica film (MSF), and an Au film, respectively. Two-photon pumping using femtosecond laser pulses at 800 nm creates amplified spontaneous emission at approximately 451 nm. The...
Paper Details
Title
Two-photon pumped spaser based on the CdS/ZnS core/shell quantum dot–mesoporous silica–metal structure
Published Date
Apr 1, 2020
Journal
Volume
10
Issue
4
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