Negative Refraction Studies

$Negative Refraction Studies$

We developed a promising new idea on how to implement negative refraction at optical frequencies and with low loss (Kaestel, Fleischhauer, Yelin, Walsworth, Physical Review Letters, 99, 073602 (2007)). The idea exploits “Electromagnetically Induced Chirality” (EIC): i.e., the use of quantum interference effects similar to EIT (Electromagnetically Induced Transparency) to couple a magnetic dipole transition coherently with an electric dipole transition, which enables negative refraction without requiring negative permeability while also suppressing absorption.

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2009 (1)

Low-loss negative refraction by laser-induced magnetoelectric cross coupling. Jürgen Kästel; Michael Fleischhauer; Susanne F. Yelin; and Ronald L. Walsworth. Physical Review A, 79(6): 063818. June 2009.
$Low-loss negative refraction by laser-induced magnetoelectric cross coupling [link]$ link $Low-loss negative refraction by laser-induced magnetoelectric cross coupling [pdf]$ pdf doi link bibtex 2 downloads

@Article{Kaestel2009,
  author   = {K\"{a}stel, J\"{u}rgen and Fleischhauer, Michael and Yelin, Susanne F. and Walsworth, Ronald L.},
  title    = {Low-loss negative refraction by laser-induced magnetoelectric cross coupling},
  journal  = {Physical Review A},
  year     = {2009},
  volume   = {79},
  number   = {6},
  pages    = {063818},
  month    = jun,
  comment  = {06},
  doi      = {10.1103/PhysRevA.79.063818},
  keywords = {negative-refraction},
  url_link = {https://link.aps.org/doi/10.1103/PhysRevA.79.063818},
  url_pdf  = {https://blog.umd.edu/walsworth/files/2020/08/2009_Kastel_PRA.pdf},
}

2007 (1)

Tunable Negative Refraction without Absorption via Electromagnetically Induced Chirality. Jürgen Kästel; Michael Fleischhauer; Susanne F. Yelin; and Ronald L. Walsworth. Physical Review Letters, 99(7): 073602. August 2007.
$Tunable Negative Refraction without Absorption via Electromagnetically Induced Chirality [link]$ link $Tunable Negative Refraction without Absorption via Electromagnetically Induced Chirality [pdf]$ pdf doi link bibtex 2 downloads

@Article{Kaestel2007,
  author   = {K\"{a}stel, J\"{u}rgen and Fleischhauer, Michael and Yelin, Susanne F. and Walsworth, Ronald L.},
  title    = {Tunable {Negative} {Refraction} without {Absorption} via {Electromagnetically} {Induced} {Chirality}},
  journal  = {Physical Review Letters},
  year     = {2007},
  volume   = {99},
  number   = {7},
  pages    = {073602},
  month    = aug,
  comment  = {08},
  doi      = {10.1103/PhysRevLett.99.073602},
  keywords = {negative-refraction},
  url_link = {https://link.aps.org/doi/10.1103/PhysRevLett.99.073602},
  url_pdf  = {https://blog.umd.edu/walsworth/files/2020/08/2007_Kastel_PRL.pdf}
}