Porous Silicon for Pumping Solid-State Lasers
Abstract
Preliminary experiments were performed to investigate the feasibility of using silicon-based sources to pump solid-state lasers. Photoluminescent porous silicon and porous silicon-on-sapphire (SOS) have been fabricated using chemical, electrochemical, and photochemical techniques. An electrochemically fabricated porous silicon sample exhibited 5% quantum efficiency when pumped with 5 mW of 457.9 nm argon ion laser light with a peak emission wavelength of 720 nm. This is consistent with other reports that efficiencies between 1 and 10% have been observed. This room temperature performance exceeds the early development of light emission from III-V semiconductors and suggests that continued research and development of the emission mechanism and optimization of the fabrication process can produce, at the very least, functionally equivalent results in a less expensive material which is amenable to large-scale integration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1993
- Accession Number
- ADA266293
Entities
People
- R. L. Shimabukuro
- S. D. Russell
- W. B. Dubbelday
Organizations
- Naval Command, Control and Ocean Surveillance Center