Final LDRD report : development of advanced UV light emitters and biological agent detection strategies.
We present the results of a three year LDRD project which has focused on the development of novel, compact, ultraviolet solid-state sources and fluorescence-based sensing platforms that apply such devices to the sensing of biological and nuclear materials. We describe our development of 270-280 nm AlGaN-based semiconductor UV LEDs with performance suitable for evaluation in biosensor platforms as well as our development efforts towards the realization of a 340 nm AlGaN-based laser diode technology. We further review our sensor development efforts, including evaluation of the efficacy of using modulated LED excitation and phase sensitive detection techniques for fluorescence detection of bio molecules and uranyl-containing compounds.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 950095
- Report Number(s):
- SAND2007-7685
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM NITRIDES
BIOLOGICAL MATERIALS
Biological detection.
DESIGN
DETECTION
Detection.
FLUORESCENCE
Fluorescence.
GALLIUM NITRIDES
LASERS
LIGHT EMITTING DIODES
Nuclear materials-Detection.
PERFORMANCE
RADIOACTIVE MATERIALS
SENSORS
ULTRAVIOLET RADIATION