Nanofiber LIBS for Nanoparticle Composition

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-04-C-0061
Agency Tracking Number: A045-011-0038
Amount: $100,000.00
Phase: Phase I
Program: STTR
Awards Year: 2004
Solicitation Year: 2004
Solicitation Topic Code: A04-T011
Solicitation Number: N/A
Small Business Information
44 Hunt Street, Watertown, MA, 02472
DUNS: 073804411
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Arieh Karger
 Pysicist, Group Leader
 (617) 668-6827
Business Contact
 Gerald Entine
Title: President
Phone: (617) 668-6800
Research Institution
 Harvard University
 Eric Mazur
 Pierce 225 , 29 Oxford Street
Cambridge, MA, 02138
 (617) 496-8729
 Nonprofit college or university
The pervasiveness of nanoparticles and nanomaterials is rapidly expanding, and determination of their chemical composition can be achieved by Laser-Induced Breakdown Spectroscopy (LIBS) excited through an optical fiber of nanometer dimensions. We propose to develop a LIBS system for nanomaterials based upon recently demonstrated nanometer silica wires [Nature, Dec 2003] for excitation and an ultrasensitive avalanche photodiode (APD) array for optical detection. Moreover, we propose to employ a near-field approach to excite LIBS using femtosecond laser pulses, which yield sharper LIBS spectra and minimize damage to the nanofiber. The Phase-I goal is to demonstrate nanometer spatial resolution of compositional analysis of nanoparticles on surfaces. The ultimate goal is a system that will achieve single-pulse compositional analyses of nanostructure in various configurations, including for surface microscopy and in-situ monitoring of size and composition of nanoparticles in flowing reactant streams.

* Information listed above is at the time of submission. *

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