TY  - JOUR
AU  - Radovanovic, Jelena V.
AU  - Ilic, Igor
AU  - Beličev, Petra
AU  - Hadžievski, Ljupčo
AU  - Milanović, Vitomir B.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4312
AB  - Investigating the propagation of electromagnetic radiation in linear and nonlinear materials (with third-order nonlinearity), we derived a general expression for the dwell time valid for all linear media, as well as its relation with the group delay. The obtained results indicate that, for a nonmagnetic lossless material, the group delay reduces to the sum of the dwell time and the self-interference time. Calculations confirmed the occurrence of the Hartman effect in negative-refractive-index metamaterials (the dwell time saturates with increasing obstacle length), as well as the negative group delay in a certain spectral regime. Analysis of the Goos-Hanchen shift, in case of an obstacle made of negative-refractive-index metamaterial embedded in a dielectric with saturable nonlinearity, showed that there is no impact on the dwell time, while various effects on the group delay may be achieved, including its reduction or even preservation for nonzero incident angles. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3586782]
T2  - Journal of Nanophotonics
T1  - Tunneling times in dispersive and third-order nonlinear optical metamaterials
VL  - 5
DO  - 10.1117/1.3586782
ER  - 

@article{
author = "Radovanovic, Jelena V. and Ilic, Igor and Beličev, Petra and Hadžievski, Ljupčo and Milanović, Vitomir B.",
year = "2011",
abstract = "Investigating the propagation of electromagnetic radiation in linear and nonlinear materials (with third-order nonlinearity), we derived a general expression for the dwell time valid for all linear media, as well as its relation with the group delay. The obtained results indicate that, for a nonmagnetic lossless material, the group delay reduces to the sum of the dwell time and the self-interference time. Calculations confirmed the occurrence of the Hartman effect in negative-refractive-index metamaterials (the dwell time saturates with increasing obstacle length), as well as the negative group delay in a certain spectral regime. Analysis of the Goos-Hanchen shift, in case of an obstacle made of negative-refractive-index metamaterial embedded in a dielectric with saturable nonlinearity, showed that there is no impact on the dwell time, while various effects on the group delay may be achieved, including its reduction or even preservation for nonzero incident angles. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3586782]",
journal = "Journal of Nanophotonics",
title = "Tunneling times in dispersive and third-order nonlinear optical metamaterials",
volume = "5",
doi = "10.1117/1.3586782"
}

Radovanovic, J. V., Ilic, I., Beličev, P., Hadžievski, L.,& Milanović, V. B.. (2011). Tunneling times in dispersive and third-order nonlinear optical metamaterials. in Journal of Nanophotonics, 5.
https://doi.org/10.1117/1.3586782

Radovanovic JV, Ilic I, Beličev P, Hadžievski L, Milanović VB. Tunneling times in dispersive and third-order nonlinear optical metamaterials. in Journal of Nanophotonics. 2011;5.
doi:10.1117/1.3586782 .

Radovanovic, Jelena V., Ilic, Igor, Beličev, Petra, Hadžievski, Ljupčo, Milanović, Vitomir B., "Tunneling times in dispersive and third-order nonlinear optical metamaterials" in Journal of Nanophotonics, 5 (2011),
https://doi.org/10.1117/1.3586782 . .