Switching Purcell effect with nonlinear epsilon-near-zero media
Abstract
An optical topological transition is defined as the change in the photonic iso-frequency surface around epsilon-near-zero (ENZ) frequencies which can considerably change the spontaneous emission of a quantum emitter placed near a metamaterial slab. In this work, we show that due to the strong Kerr nonlinearity at ENZ frequencies, a high-power pulse can induce a sudden transition in the topology of the iso-frequency dispersion curve, leading to a significant change in the transmission of propagating as well as evanescent waves through the metamaterial slab. This evanescent wave switch effect allows for the control of spontaneous emission through modulation of the Purcell effect. We determine a theory of the enhanced nonlinear response of ENZ media to s and p polarized inputs and show that this nonlinear effect is stronger for p polarization and is almost independent of the incident angle. We perform finite-difference time-domain simulations to demonstrate the transient response of the metamaterial slab to an ultrafast pulse and fast switching of the Purcell effect at the sub-picosecond scale. The Purcell factor changes at ENZ by almost a factor of three which is an order of magnitude stronger than that away from ENZ. We additionally demonstrate that due to the inhomogeneousmore »
- Authors:
-
[1];
- Univ. of Alberta, Edmonton, AB (Canada); Purdue Univ., West Lafayette, IN (United States)
- Univ. of Alberta, Edmonton, AB (Canada)
- Publication Date:
- Research Org.:
- Purdue Univ., West Lafayette, IN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- OSTI Identifier:
- 1540208
- Alternate Identifier(s):
- OSTI ID: 1460024
- Grant/Contract Number:
- SC0017717
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Physics Letters
- Additional Journal Information:
- Journal Volume: 113; Journal Issue: 2; Journal ID: ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Jahani, Saman, Zhao, Hangqi, and Jacob, Zubin. Switching Purcell effect with nonlinear epsilon-near-zero media. United States: N. p., 2018.
Web. doi:10.1063/1.5030023.
Jahani, Saman, Zhao, Hangqi, & Jacob, Zubin. Switching Purcell effect with nonlinear epsilon-near-zero media. United States. doi:10.1063/1.5030023.
Jahani, Saman, Zhao, Hangqi, and Jacob, Zubin. Thu .
"Switching Purcell effect with nonlinear epsilon-near-zero media". United States. doi:10.1063/1.5030023. https://www.osti.gov/servlets/purl/1540208.
@article{osti_1540208,
title = {Switching Purcell effect with nonlinear epsilon-near-zero media},
author = {Jahani, Saman and Zhao, Hangqi and Jacob, Zubin},
abstractNote = {An optical topological transition is defined as the change in the photonic iso-frequency surface around epsilon-near-zero (ENZ) frequencies which can considerably change the spontaneous emission of a quantum emitter placed near a metamaterial slab. In this work, we show that due to the strong Kerr nonlinearity at ENZ frequencies, a high-power pulse can induce a sudden transition in the topology of the iso-frequency dispersion curve, leading to a significant change in the transmission of propagating as well as evanescent waves through the metamaterial slab. This evanescent wave switch effect allows for the control of spontaneous emission through modulation of the Purcell effect. We determine a theory of the enhanced nonlinear response of ENZ media to s and p polarized inputs and show that this nonlinear effect is stronger for p polarization and is almost independent of the incident angle. We perform finite-difference time-domain simulations to demonstrate the transient response of the metamaterial slab to an ultrafast pulse and fast switching of the Purcell effect at the sub-picosecond scale. The Purcell factor changes at ENZ by almost a factor of three which is an order of magnitude stronger than that away from ENZ. We additionally demonstrate that due to the inhomogeneous spatial field distribution inside the multilayer metal-dielectric super-lattice, a unique spatial topological transition metamaterial can be achieved by the control pulse induced nonlinearity. This work can lead to ultra-fast control of quantum phenomena in ENZ metamaterials.},
doi = {10.1063/1.5030023},
journal = {Applied Physics Letters},
number = 2,
volume = 113,
place = {United States},
year = {2018},
month = {7}
}
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