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Terahertz-Frequency Lasers based on Semiconductor Nanocrystals

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-05-C-0124
Agency Tracking Number: A045-015-0211
Amount: $750,000.00
Phase: Phase II
Program: STTR
Solicitation Topic Code: A04-T015
Solicitation Number: N/A
Solicitation Year: 2004
Award Year: 2005
Award Start Date (Proposal Award Date): 2005-10-03
Award End Date (Contract End Date): 2006-10-02
Small Business Information
1 Chartwell Circle
Shrewsbury, MA 01545
United States
DUNS: 024491446
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Valery Rupasov
 Principal Scientist
 (508) 845-5349
Business Contact
 Sergei Krivoshlykov
Title: President
Phone: (508) 845-5349
Research Institution
 Dina Caplinger
P.O Box 830688
Richardson, TX 75083
United States

 (972) 883-2312
 Nonprofit College or University

ALTAIR Center in cooperation with the NanoTech Institute at the University of Texas at Dallas proposes to develop a new class of terahertz (THz) lasers generating about 1 mW in the frequency range 0.3-10 THz at room temperature. The proposed concept is based on employing the semiconductor nanocrystals (quantum dots). The nanocrystal emitters are optically pumped by commercially available powerful and cost-efficient laser diodes operating in the near-infrared region of spectrum. The proposed concept allows complete preventing the nonradiative Auger processes that are a major obstacle for lasing on nanocrystals. Because transition frequencies in the nanocrystals are easily controlled by appropriate choice of nanocrystal radius and semiconductor material, the proposed laser sources can cover the entire THz-frequency range. In the course of Phase I project, we already proved feasibility of the proposed concept of THz lasing on semiconductor nanocrystals by analytical studies and numerical modeling. In Phase II the prototype THz laser will be fabricated, optimized tested and delivered to DoD for immediate implementation.

* Information listed above is at the time of submission. *

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