We demonstrate a compact system incorporating a 32-element linear array of ultraviolet (UV) light-emitting
diodes (LEDs) to the in-flight fluorescence detection of aerosolized particles. Custom electronics manage a standalone
system and enable real-time processing of spectral data, which is used to cue a miniaturized aerodynamic deflector for
physical particle separation. This front-end system improves the prospects for many second-stage analysis methods by
reducing the background particle burden and providing a suspicious-particle enriched sample. The performance of UV
LED arrays as an excitation source is established by the ability to detect emission from NADH and tryptophan in aerosol
samples. On-the-fly fluorescence collection, operation of a real-time spectral algorithm, and aerosol concentration is
demonstrated by separating particles that exhibit a specific spectral feature from a background of otherwise fluorescing
particles.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.