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Laser Sensor for Unattended, and Precise Determination of Calcium and Strontium in Seawater

Award Information
Agency: Department of Commerce
Branch: National Oceanic and Atmospheric Administration
Contract: WC-133R-15-CN-0068
Agency Tracking Number: 15-1-008
Amount: $95,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 8.6.1X
Solicitation Number: N/A
Solicitation Year: 2015
Award Year: 2015
Award Start Date (Proposal Award Date): 2015-08-27
Award End Date (Contract End Date): 2016-02-27
Small Business Information
574 Stone Hill Road
Orange, CT 06477-3709
United States
DUNS: 021756650
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Radoslaw Sobczynski
 (203) 847-3607
Business Contact
 Dorothy Sobczynski
Title: President
Phone: (203) 874-3607
Research Institution

The use of unattended floats, platforms, and drones addresses the immense challenge of cost-effectively characterizing the chemistry of the oceans. The proposed program strengthens this capability by demonstrating the feasibility of Laser Fluorescence Enhanced Flame Spectrophotometry (LFEFS) for the simultaneous and high precision measurement of calcium and strontium. These are key elements of the human food chain at risk due to ocean acidification. LFEFS offers ICP-AES-comparable precision with greater chemical selectivity and immunity to interference with compact and light weight design. The LFEFS innovation is enabled by the incorporation of the recently developed IPSSL (Intracavity Plasma Solid State Laser) platform. IPSSL is an atomic resonant wavelength laser with an embedded atomic standard. The resulting wavelength stability (ranging from 0.1 to 1 picometers) virtually eliminates wavelength drift and simplifies instrument design. High precision and signal-to-noise are promoted by (1) optical power levels sufficient to saturate the resonant transition eliminating quenching of exited atoms, and (2) operation based on ground state rather than excited state transitions. The beam can be electronically modulated for noise reduction, and no spectrometer is required.
Experimental IR&D results using IPSSL-Rb are supportive of proposal contentions. A successful program will result in products for immediate commercialization.

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

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