Computation & Modeling of Electromagnetic Wave Propagation in the Highly Nonlinear Regime
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.
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- Date: 25 Oct 2017
- Time: 06:00 PM to 07:30 PM
- All times are (GMT-08:00) US/Pacific
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- Co-sponsored by Photonics Chapter
- Starts 19 October 2017 12:00 AM
- Ends 25 October 2017 09:00 PM
- All times are (GMT-08:00) US/Pacific
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Speakers
Dr Brittany Lynn
Computation & Modeling of Electromagnetic Wave Propagation in the Highly Nonlinear Regime
Biography:
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.
Address:SPAWAR,
Dr. Pei-Fang Wang
Computation & Modeling of Electromagnetic Wave Propagation in the Highly Nonlinear Regime
Biography:
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.
Address:SPAWAR,
Dr Brittany Lynn
Computation & Modeling of Electromagnetic Wave Propagation in the Highly Nonlinear Regime
Biography:
Dr. Pei-Fang Wang
Computation & Modeling of Electromagnetic Wave Propagation in the Highly Nonlinear Regime
Biography:
Agenda
6:00-6:30 PM Pizza and Social
6:30-7:30 PM Presentation