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Computation & Modeling of Electromagnetic Wave Propagation in the Highly Nonlinear Regime

on October 25, 2017 from 6:00 PM to 7:30 PM

Speaker Dr Brittany Lynn and Dr Pei-Fang Wang, SPAWAR
Topic Info

Co-Host - Photonics Chapter


ABSTRACT:

Major technological advances have been made in the last decade in pulsed lasers. Lasers with tens of femtosecond pulse duration have been commercialized in relatively ruggedized single enclosure systems capable of producing watts of average power. These energy densities on the order of GW peak powers can trigger various linear and non-linear processes, leading to self-guided propagation and dense plasma creation in air and condensed media. The free-electrons in these plasma regions have been shown to reach densities up to 1016 /cm3 in sea-level atmospheric conditions and stable plasma filaments have been created extending over 100’s of meters.


Supporting applications of these lasers with predictive models is a difficult task as computational propagation of high power, short pulse lasers with arbitrary beam profiles is highly complex. These types of models require high resolution of a 3-dimensional volume propagated through time and include broadband non-linear effects of the media with which they are interacting. Add in turbulence and statistical beam effects and the system can quickly become computationally unwieldy. This talk will describe recent work in simulating the Ultra Short Pulse Laser propagation and the resulting non-linear effects, including the creation of plasma as well as various experimental laboratory results.


Speaker Bio

Dr. Brittany Lynn


Dr. Brittany Lynn is currently a Scientist in the Advanced Photonics

Technologies Branch at Space and Naval Warfare (SPAWAR) Systems Center

Pacific where she has been standing up the SPAWAR Systems Center Pacific

USPL plasma laboratory, leading both theoretical and experimental teams to

relate the complex interaction between optical propagation and plasma

evolution to applications in Radar communications and sensing systems.

Prior to joining SPAWAR, she worked for NP Photonics developing ultra-short

pulse fiber lasers in the mid-IR.  She received her Ph.D. in Optical

Sciences from the University of Arizona in 2015 with a focus on

experimentation and modeling of non-linear optical and material phenomena. 

 

Dr. Pei-Fang Wang


Dr. Pei-Fang Wang has been a Senior Engineer at SPAWAR Systems Center

Pacific for the last 20 years in the Marine Environmental Quality Branch.

He has conducted analytical, empirical and modeling research studies to

support the Navy's environmental programs.  These hydrodynamic systems are

large, non-linear systems similar in nature to optical propagation

computations and his work has incorporated the AFRL DoD Supercomputing

Resource Center for complex analysis.  His recent work has been the

implementation of various pulse propagation schemes to support these ongoing efforts.

Location ATEC - Advanced Test Equipment
Directions

Advanced Test Equipment Corp

10401 Roselle Street
San Diego, CA 92121

https://www.google.com/maps/place/10401+Roselle+St,+San+Diego,+CA+92121/@32.893804,-117.2200662,17z/data=!3m1!4b1!4m5!3m4!1s0x80dc071e63085261:0x79923e0da5ad3cbf!8m2!3d32.893804!4d-117.2178775

Agenda

6:00-6:30 PM Pizza and Social

6:30-7:30 PM Presentation


Cost Free for IEEE members and ALL students; $ 5 otherwise (at door prefered)
RSVP

Please register on Vtools https://events.vtools.ieee.org/m/47826


POC : douglass.evans@sbcglobal.net



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