Compact, Low-Cost THz Test System

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-13-M-1560
Agency Tracking Number: F12B-T08-0035
Amount: $150,000.00
Phase: Phase I
Program: STTR
Awards Year: 2013
Solicitation Year: 2012
Solicitation Topic Code: AF12-BT08
Solicitation Number: 2012.B
Small Business Information
Picometrix LLC
2925 Boardwalk, Ann Arbor, MI, -
DUNS: 788133387
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 David Zimdars
 Mgr of THz Development
 (734) 864-5639
 dzimdars@picometrix.com
Business Contact
 Robin Risser
Title: Chief Operating Office
Phone: (734) 864-5605
Email: rrisser@picometrix.com
Research Institution
 NJIT
 Donald H Sabastian
 350 Fenster Hall
323 King Blvd
Newark, NJ, 07102-
 (973) 596-8449
 Nonprofit college or university
Abstract
ABSTRACT: In this Phase I STTR project, we propose to demonstrate the feasibility of developing a low cost, compact, time-domain terahertz (TD-THz) spectrometer specifically for the characterization of semiconductor materials over a range of temperatures, electric fields, and magnetic fields. In phase I, we will configure fiber optic coupled TD-THz instrumentation to make measurements on a sample using a commercial, off the shelf (COTS) optical cryostat and with variable electrical and magnetic field. We will specify analysis methods to determine relevant semiconductor parameters such as doping concentrations and carrier mobility from the THz spectral data. We will demonstrate these methods by collecting and analyzing the THz spectra of representative semiconductor samples as a function of temperature, electric field and magnetic field. In this Phase I STTR project, we propose to demonstrate the feasibility of developing a low cost, compact, time-domain terahertz (TD-THz) spectrometer specifically for the characterization of semiconductor materials over a range of temperatures, electric fields, and magnetic fields. In phase I, we will configure fiber optic coupled TD-THz instrumentation to make measurements on representative semiconductor samples using a commercial, off the shelf (COTS) optical cryostat and with variable electrical and magnetic field. We will specify analysis methods to determine relevant semiconductor parameters such as doping concentrations and carrier mobility from the THz spectral data. We will demonstrate these methods by collecting and analyzing the THz spectra of representative semiconductor samples as a function of temperature, electric field and magnetic field. We will develop the specifications for a Phase II prototype TD-THz test system using fiber optic coupled THz instrumentation and components for automatically acquiring the THz spectral data under the relevant conditions. The fiber optic THz transmit and receive modules would be integrated into a sample cryostat with variable electric and magnetic field.rade offs in features, size, weight, and cost will be discussed. BENEFIT: Upon successful completion of the Phase II project, the proposed TD-THz spectrometer will provide a turn-key system for the determination of semiconductor electronic and optical properties such as doping concentration and carrier mobility. The instrument will acquire TD-THz spectra from 0.1 to>3THz. The sample under test may be measured at a wide range of cryogenic temperatures, electric fields, and magnetic fields. The instrument will employ software which automates the Phase I algorithms to calculate the electronic and optical parameters of the semiconductor samples. The instrument will be suitable THz spectroscopy of pharmaceuticals, synthesized organic compounds, explosives, and other material.

* information listed above is at the time of submission.

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