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Modelling electromagnetically induced transparency media using the finite-difference time-domain method
KTH, School of Information and Communication Technology (ICT), Optics and Photonics, Photonics.
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP.
2007 (English)In: New Journal of Physics, ISSN 1367-2630, Vol. 9Article in journal (Refereed) Published
Abstract [en]

Time-domain electromagnetic modelling of complex structures which include both non-dispersive media and media exhibiting electromagnetically induced transparency (EIT) require a general, robust calculation method such as finite-difference time-domain (FDTD). We propose a complex-valued, exact two-pole representation of the permittivity of a three-level system which is suitable for integration into the FDTD algorithm via the auxiliary differential equation method. Our calculation model confirmed reported results which were calculated with an approximate representation of the EIT permittivity. Additionally, propagation calculations which mimic slow light experiments were performed. A major advantage of our representation is the ease with which changes in the control field Rabi frequency can be implemented by using a time-dependent permittivity.

Place, publisher, year, edition, pages
2007. Vol. 9
URN: urn:nbn:se:kth:diva-16468DOI: 10.1088/1367-2630/9/3/048ISI: 000245050400004ScopusID: 2-s2.0-33847654298OAI: diva2:334510
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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