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STRAINED TYPE II SUPERLATTICE INFRARED DETECTORS

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
17014
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
17014
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
SVT Associates
7620 Executive Drive Eden Prairie, MN 55344-3677
View profile »
Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1992
Title: STRAINED TYPE II SUPERLATTICE INFRARED DETECTORS
Agency: NASA
Contract: N/A
Award Amount: $484,347.00
 

Abstract:

THIS PROJECT WILL INVESTIGATE THE OPTICAL PROPERTIES OF A RECENTLY INVENTED CLASS OF TYPE-II, STRAINED-LAYER SUPERLATTICES MADE OF GAAS RELATED COMPOUNDS. THE NEW CONCEPT HAS ADVANTAGES, COMPARED WITH PREVIOUS EFFORTS, IN THAT SMALL BAND GAPS MAY BE ACHIEVED WITH SUFFICIENTLY THIN REPEATING LAYERS IN THE SUPERLATTICES. AS A RESULT, THEY HAVE GOOD OPTICAL-ABSORPTION PROPERTIES AND FAVORABLE ELECTRICAL-TRANSPORT PROPERTIES. ORIGINAL CALCULATIONS HAVEINDICATED THAT GA1-XINXSB/INAS IS THE BEST CHOICE FOR SUCH APPLICATION. VERY RECENTLY, IT HAS BEEN SHOWN TO HAVE THE HIGHEST ABSORPTION COEFFICENT AT 10MUM WAVELENGTH COMPARED WITH ALL OTHER SUPERLATTICE MATERIALS. PROJECT OBJECTIVES ARE TO FABRICATE, ACCORDING TO THEORETICAL MODELS, OPTIMIZEDDETECTOR STRUCTURES AND TO EVALUATE THEIR INFRARED OPTICAL PROPERTIES. THESE WILL BE FABRICATED BY MOLECULAR-BEAM EPITAXY (MBE), ACCORDING TO STRUCTURAL PARAMETERS DETERMINED FROM THEORETICAL MODELING. THE SAMPLE WILL BE CHARACTERIZED OPTICALLY AND EVALUATED FOR INFRARED DETECTIONAPPLICATIONS IN THE 2-17MUM REGION. THIS PROJECT WILL INVESTIGATE THE OPTICAL PROPERTIES OF A RECENTLY INVENTED CLASS OF TYPE-II, STRAINED-LAYER SUPERLATTICES MADE OF GAAS RELATED COMPOUNDS. THE NEW CONCEPT HAS ADVANTAGES, COMPARED WITH PREVIOUS EFFORTS, IN THAT SMALL BAND GAPS MAY BE ACHIEVED WITH SUFFICIENTLY THIN REPEATING LAYERS IN THE SUPERLATTICES. AS A RESULT, THEY HAVE GOOD OPTICAL-ABSORPTION PROPERTIES AND FAVORABLE ELECTRICAL-TRANSPORT PROPERTIES. ORIGINAL CALCULATIONS HAVEINDICATED THAT GA1-XINXSB/INAS IS THE BEST CHOICE FOR SUCH APPLICATION. VERY RECENTLY, IT HAS BEEN SHOWN TO HAVE THE HIGHEST ABSORPTION COEFFICENT AT 10MUM WAVELENGTH COMPARED WITH ALL OTHER SUPERLATTICE MATERIALS. PROJECT OBJECTIVES ARE TO FABRICATE, ACCORDING TO THEORETICAL MODELS, OPTIMIZEDDETECTOR STRUCTURES AND TO EVALUATE THEIR INFRARED OPTICAL PROPERTIES. THESE WILL BE FABRICATED BY MOLECULAR-BEAM EPITAXY (MBE), ACCORDING TO STRUCTURAL PARAMETERS DETERMINED FROM THEORETICAL MODELING. THE SAMPLE WILL BE CHARACTERIZED OPTICALLY AND EVALUATED FOR INFRARED DETECTIONAPPLICATIONS IN THE 2-17MUM REGION.

Principal Investigator:


0

Business Contact:

Small Business Information at Submission:

Superior Vacuum Technology
7388 Washington Ave Eden Prairie, MN 55344

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No