Tunneling times in dispersive and third-order nonlinear optical metamaterials
Само за регистроване кориснике
2011
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
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]
Кључне речи:
dwell time / group delay / negative index metamaterials / saturable nonlinearity / Goos-Hanchen effectИзвор:
Journal of Nanophotonics, 2011, 5Финансирање / пројекти:
- Фотоника микро и нано структурних материјала (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45010)
DOI: 10.1117/1.3586782
ISSN: 1934-2608
WoS: 000290614300002
Scopus: 2-s2.0-80755147259
Институција/група
VinčaTY - JOUR AU - Radovanović, Jelena V. AU - Ilić, 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 = "Radovanović, Jelena V. and Ilić, 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" }
Radovanović, J. V., Ilić, 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
Radovanović JV, Ilić 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 .
Radovanović, Jelena V., Ilić, 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 . .