Ultra-Sensitive Raman Detector:A SERS Spectrometer

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$69,995.00
Award Year:
2001
Program:
SBIR
Phase:
Phase I
Contract:
DAAD19-02-C-0030
Award Id:
52976
Agency Tracking Number:
A012-2002
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
111 Downey Street, Norwood, MA, 02062
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
076603836
Principal Investigator:
James Janni
Senior Scientist
(781) 769-9450
janni@eiclabs.com
Business Contact:
R.David Rauh
President
(781) 769-9450
drauh@eiclabs.com
Research Institution:
n/a
Abstract
Surface-enhanced Raman scattering (SERS) for handheld, field analysis of biological health and safety threats requires the development of an advanced, compact Raman spectrometer tailored to SERS. Our proposed efforts will decrease spectrometer size, lowerits power consumption, expand the Raman spectral range and develop an optical interface that improves excitation and collection efficiency when compared to current portable Raman systems. A novel spectrometer design based solely on fiber optics technologywill be built in a fraction of the volume possible with dispersive instruments as a means of achieving the goal of handheld operation. This spectrometer will be coupled to our highly sensitive SERS sensors through specially designed and tested opticalinterfaces that account for the angular and spatial dependence of the excitation phenomenon. Analyte will be delivered to the substrate through sample collection mechanisms that account for the aerodynamics and thermodynamics that dictate SERSsubstrate/analyte interactions. The design features of the proposed SERS spectrometer based biological sensor will be thoroughly tested in a research program organized around understanding optimal SERS excitation, collection, and substrate analyteinteractions. The research will also be directed at increasing excitation efficiency through the use of microcavities. Small and inexpensive Raman instrumentation will bring new commercial applications of the method, including quality control analysis,process controllers, forensic instruments for identifying illegal substances, and air and water monitors.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government