Silicon Nanocrystal Laser

Yu, J

Lawrence Livermore National Laboratory

关键词: Feedback;    Wavelengths;    36 Materials Science;    42 Engineering;    71 Classical And Quantum Mechanics, General Physics;   

DOI  :  10.2172/15015892
RP-ID  :  UCRL-TR-210767
RP-ID  :  W-7405-ENG-48
RP-ID  :  15015892

美国|英语

来源: UNT Digital Library

【 摘 要 】

The purpose of this feasibility study project was to attempt to demonstrate the silicon-nanocrystal-based laser. Such a silicon laser (made using conventional silicon-manufacturing technologies) would provide the crucial missing link that would enable a completely-silicon-based photonic system. We prepared thin layers of silicon nanocrystal material by ion-implanting Si in fused silica substrates, followed by a high temperature anneal process. These Si nanocrystals produced intense photoluminescence when optically pumped with ultraviolet light. Laser structures based on Fabry-Perot cavity and distributed feedback (DFB) designs were fabricated using the Si nanocrystals as the ''lasing'' medium. We optically pumped the samples with CW lasers at 413nm wavelength to quickly assess the feasibility of making lasers out of the Nanocrystal Si material and to verify the gain coefficients reported by other research groups.