Slow light imaging spectroscopy (SLIS): A comparison of different filters

Amirhossein Abbasszadeh Rad, Anuj Rekhy, Arthur Dogariu, Richard B. Miles

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


In this study, we model four atomic filters useful in slow light imaging spectroscopy. We calculate delay using the group velocity in rubidium at 780 nm, mercury at 254 nm, and cesium at 852 nm and 387.6 nm at different temperatures and path lengths of the atomic filter. We also calculate the output of a 5 ns pulse by propagating its Fourier components through cells. Then we compare the results of these two numerical models with the ideal limit set only by the natural linewidth of the atomic transition. This ideal limit corresponds to cases where the frequency is right between two equally strong absorption lines. In this case, delay and transmittance are as high as possible. By tuning the frequency to peaks of transmittance, the filter can work close to ideal. Cesium cell at 387.6, though unable to reach the ideal limit at normal temperatures and path lengths, can still separate this frequency at the cost of less than ideal transmittance.

Original languageEnglish (US)
Title of host publicationAIAA AVIATION 2020 FORUM
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105982
StatePublished - 2020
Externally publishedYes
EventAIAA AVIATION 2020 FORUM - Virtual, Online
Duration: Jun 15 2020Jun 19 2020

Publication series

Volume1 PartF


CityVirtual, Online

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Energy Engineering and Power Technology


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