Materials for Terahertz Frequencies

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$99,912.00
Award Year:
2006
Program:
SBIR
Phase:
Phase I
Contract:
FA8650-06-M-5408
Award Id:
79094
Agency Tracking Number:
F061-110-3799
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
18007 Cortney Court, City of Industry, CA, 91748
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
145098567
Principal Investigator:
TaweeTanbun-Ek
VP of Engineering
(626) 581-3755
tawee.tanbunek@atoptics.com
Business Contact:
RandallWilson
VP of Business Development
(626) 581-3755
randy.wilson@atoptics.com
Research Institute:
n/a
Abstract
We propose to develop a novel source of THz radiation based on monolithic integration of dual wavelength Quantum cascade laser (QCL) and intersubband difference frequency generator (DFG) with Cerenkov phase-matching. In addition we propose to demonstrate a novel 3-frequency coherent heterodyning detection scheme using a QWIP as a mixer/detector element with an estimated NEP of 10-17W/Hz(1/2). The THz source will use electrical pumping, incorporate monolithic integration, exhibit room temperature operation, and have a wall plug efficiency of up to 1%. In addition it will have a compact size (determined only by a power supply) and is potential tunable. The key features of our approach for the THz source are: (1)The use of a room temperature dual-wavelength QCL laser for intra-cavity pumping; (2) The use of intra-cavity asymmetric coupled QW's for difference frequency generation in the THz range; (3) The use of Cerenkov -type phase matching for efficient out-coupling of THz radiation; (4) Achieving tunability of the THz radiation based on frequency tuning of the QCL. Key features of the detection scheme is the use of 2 individual mid-IR QCLs as heterodyning sources and a QWIP as a combined mixer/detector element.

* information listed above is at the time of submission.

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