Terahertz-Frequency Lasers based on Semiconductor Nanocrystals

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$750,000.00
Award Year:
2005
Program:
STTR
Phase:
Phase II
Contract:
W911NF-05-C-0124
Award Id:
68436
Agency Tracking Number:
A045-015-0211
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1 Chartwell Circle, Shrewsbury, MA, 01545
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
024491446
Principal Investigator:
ValeryRupasov
Principal Scientist
(508) 845-5349
altairctr@aol.com
Business Contact:
SergeiKrivoshlykov
President
(508) 845-5349
altairctr@aol.com
Research Institute:
UNIV. OF TEXAS AT DALLAS
Dina Caplinger
P.O Box 830688
Richardson, TX, 75083
(972) 883-2312
Nonprofit college or university
Abstract
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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