Tunable Terahertz-Frequency Lasers Based on Semiconductor Nanocrystals

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$100,000.00
Award Year:
2004
Program:
STTR
Phase:
Phase I
Contract:
W911NF-04-C-0089
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:
University of Texas
Millie Smith
2601 N. Floyd Rd.
Richardson, TX, 75080
(972) 883-4316
Nonprofit college or university
Abstract
ALTAIR Center proposes to develop a new class of tunable terahertz laser sources based on an active laser material fabricated from spherical semiconductor nanocrystals (quantum dots) incorporated into an optical medium transparent in terahertz-frequency range. Due to the strong Stark effect, recently discovered in semiconductor nanocrystals, the transition frequencies can be shifted by an applied low electric voltage that allows developing THz lasers tunable in a wide frequency range. In the proposed implementation, the nanocrystal composites will be incorporated into silicon waveguide structure working as an optical resonator for nanocrystal emitters. That enables on-chip integration of the THz laser sources and terahertz photonics with silicon microelectronics. All key components of the proposed device are either commercially available or routinely fabricated in many laboratories. In Phase I, we will prove feasibility of the proposed concept, evaluate optimum parameters of the required optical elements, and identify cost-effective technology for fabrication of the THz laser. In Phase II, the technology will be completely optimized and applied to fabrication of the prototype THz lasers tunable in a wide range of terahertz frequencies.

* information listed above is at the time of submission.

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