Accession Number : AD1038842


Title :   Hybrid Quantum Cascade Lasers on Silicon-on-Sapphire


Descriptive Note : Technical Report,21 Sep 2015,20 Jun 2016


Corporate Author : University of Texas at Austin Austin United States


Personal Author(s) : Belkin,Mikhail A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1038842.pdf


Report Date : 23 Nov 2016


Pagination or Media Count : 11


Abstract : All project goals have been achieved: I. Quantum cascade lasers (QCLs) for lambda 4.5 micron operation have been designed, grown, fabricated, and tested. II. Fabricated QCLs were epi-transferred to the silicon-on-sapphire (SOS) platform using approximately 250-nm-thick SU-8 adhesive layer. QCL-on-SOS devices were fabricated and tested. QCL-to-SOS mode coupler based on tapered waveguide was designed. III. Mode-coupled QCL on SOS were fabricated. Room-temperature operation of QCL-on-SOS was successfully demonstrated. Mid-IR light coupling to the SOS waveguide was experimentally confirmed.


Descriptors :   quantum cascade lasers , electron microscopes , scanning electron microscopes , photonics , current density , emission spectra , far field , liquid crystals , long wavelengths , photolithography , thermal resistance , beam steering , heat sinks , lasers , SILICON ON SAPPHIRE


Subject Categories : Quantum Theory and Relativity
      Lasers and Masers


Distribution Statement : APPROVED FOR PUBLIC RELEASE