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Deep UV Raman Spatial Heterodyne Spectrometer for Depth Resolved Core Analysis

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC22PB152
Agency Tracking Number: 221543
Amount: $149,979.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: S13
Solicitation Number: SBIR_22_P1
Solicitation Year: 2022
Award Year: 2022
Award Start Date (Proposal Award Date): 2022-07-14
Award End Date (Contract End Date): 2023-01-25
Small Business Information
20 New England Business Center
Andover, MA 01810-1077
United States
DUNS: 073800062
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Katharine Lunny
 (978) 738-8245
Business Contact
 Cheryl Beecher
Phone: (978) 738-8108
Research Institution

Physical Sciences Inc. (PSI) will develop a compact, solid-state ultraviolet spatially offset Raman sensor with a diagnostic core retrieval system. The UV Raman sensor, currently under development at PSI, utilizes a UV laser (266 nm) that has been developed by Q-Peak (a division of PSI) for a previous NASA SBIR. The Raman sensor will also use a high throughput spatial heterodyne interferometric spectrometer (SHS). The SHS is 104 more sensitive to Raman photons than a conventional diffraction grating based slit-spectrometer operating with the same spectral resolution in the UV. In addition, the proposed UV Raman system utilizes the Rayleigh scattering law for Raman scatter at shorter wavelengths. The current UV Raman design will be modified to include a digital micromirror device (DMD) in order to collect spatially offset Raman signal (SORS) at varying penetration depths within a material. This system will be paired with a small core retrieval system in order to measure depth resolved Raman spectra within samples. This will allow for initial diagnostic testing of areas on small bodies, such as comet nuclei, to determine where larger cores should be collected and returned to Earth. Depth resolved measurements will be more indicative of volatiles trapped within the material that might vaporize off the surface during collection and avoids contamination that can occur at the surface. The Phase I effort will focus on functional testing of the SORS breadboard with the UV laser. In parallel, the Phase I will design a prototype core retrieval system, in order to better inform the final design for a Phase II prototype.nbsp;

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

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