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Title: Theory of electromagnetic wave frequency upconversion in dynamic media

Frequency upconversion of an electromagnetic wave can occur in ionized plasma with decreasing electric permittivity and in split-ring resonator-structure metamaterials with decreasing magnetic permeability. We develop a general theory to describe the evolution of the wave frequency, amplitude, and energy density in homogeneous media with a temporally decreasing refractive index. We find that upconversion of the wave frequency is necessarily accompanied by partitioning of the wave energy into low-frequency modes, which sets an upper limit on the energy conversion efficiency. In conclusion, the efficiency limits are obtained for both varying permittivity and varying permeability.
Authors:
 [1] ;  [1] ;  [1] ;  [1]
  1. Princeton Univ., Princeton, NJ (United States)
Publication Date:
Grant/Contract Number:
NA0002948; FA9550-15-1-0391
Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 98; Journal Issue: 2; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Research Org:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1466003
Alternate Identifier(s):
OSTI ID: 1463763

Qu, Kenan, Jia, Qing, Edwards, Matthew R., and Fisch, Nathaniel J.. Theory of electromagnetic wave frequency upconversion in dynamic media. United States: N. p., Web. doi:10.1103/PhysRevE.98.023202.
Qu, Kenan, Jia, Qing, Edwards, Matthew R., & Fisch, Nathaniel J.. Theory of electromagnetic wave frequency upconversion in dynamic media. United States. doi:10.1103/PhysRevE.98.023202.
Qu, Kenan, Jia, Qing, Edwards, Matthew R., and Fisch, Nathaniel J.. 2018. "Theory of electromagnetic wave frequency upconversion in dynamic media". United States. doi:10.1103/PhysRevE.98.023202.
@article{osti_1466003,
title = {Theory of electromagnetic wave frequency upconversion in dynamic media},
author = {Qu, Kenan and Jia, Qing and Edwards, Matthew R. and Fisch, Nathaniel J.},
abstractNote = {Frequency upconversion of an electromagnetic wave can occur in ionized plasma with decreasing electric permittivity and in split-ring resonator-structure metamaterials with decreasing magnetic permeability. We develop a general theory to describe the evolution of the wave frequency, amplitude, and energy density in homogeneous media with a temporally decreasing refractive index. We find that upconversion of the wave frequency is necessarily accompanied by partitioning of the wave energy into low-frequency modes, which sets an upper limit on the energy conversion efficiency. In conclusion, the efficiency limits are obtained for both varying permittivity and varying permeability.},
doi = {10.1103/PhysRevE.98.023202},
journal = {Physical Review E},
number = 2,
volume = 98,
place = {United States},
year = {2018},
month = {8}
}