Remote atmospheric breakdown for standoff detection using intense short laser pulse compression

Antonio C. Ting; Ilya Alexeev; Daniel Gordon; Eldridge Briscoe; Joseph Penano; Richard F. Hubbard; Phillip Sprangle; Glenn Rubel

doi:10.1117/12.541655

13 August 2004 Remote atmospheric breakdown for standoff detection using intense short laser pulse compression

Antonio C. Ting, Ilya Alexeev, Daniel Gordon, Eldridge Briscoe, Joseph Penano, Richard F. Hubbard, Phillip Sprangle, Glenn Rubel

Author Affiliations +

Proceedings Volume 5416, Chemical and Biological Sensing V; (2004) https://doi.org/10.1117/12.541655
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

A remote atmospheric breakdown (RAB) is a very rich source of ultraviolet (UV) and broadband visible light that could provide the early warning to the presence of CW/BW agents through spectroscopic detection, identification and quantification at extended standoff distances. A low-intensity negatively chirped laser pulse propagating in air compresses in time due to linear group velocity dispersion and focuses transversely due to non-linear effects resulting in rapid laser intensity increase and ionization near the focal region that can be located kilometers away from the laser system. Proof of principle laboratory experiments are being performed at the Naval Research Laboratory on the generation of RAB and the spectroscopic detection of mock BW agents. We have demonstrated pulse compression and focusing up to 105 meters in the laboratory using femtosecond pulses generated by a high power Ti:Sapphire laser. We observed nonlinear modifications to the temporal frequency chirp of the laser pulse and their effects on the laser compression and the positions of the final focus. We have generated third harmonics at 267 nm and white light in air from the compressed pulse. We have observed fluorescence emission from albumin aerosols as they were illuminated by the compressed femtosecond laser pulse.

Citation Download Citation

Antonio C. Ting, Ilya Alexeev, Daniel Gordon, Eldridge Briscoe, Joseph Penano, Richard F. Hubbard, Phillip Sprangle, and Glenn Rubel "Remote atmospheric breakdown for standoff detection using intense short laser pulse compression", Proc. SPIE 5416, Chemical and Biological Sensing V, (13 August 2004); https://doi.org/10.1117/12.541655

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available