TY - GEN
T1 - Giant nonlinear processes in plasmonic metasurfaces
AU - Gomez-Diaz, J. S.
AU - Lee, J.
AU - Tymchenko, M.
AU - Belkin, M. A.
AU - Alu, A.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/10/22
Y1 - 2015/10/22
N2 - Nonlinear metasurfaces based on coupling locally-enhanced plasmonic response to intersubband transitions of multi-quantum-wells have recently provided second-order susceptibilities several orders of magnitude larger than any other non-linear flat structure measured so far. Here, we demonstrate that a proper design of the plasmonic metasurface inclusions can dramatically enhance the overall non-linear response of the structure. The optimized metasurfaces are then applied to achieve efficient second-harmonic generation (SHG) and differential frequency generation (DFG) in the infrared and terahertz frequency bands, respectively. In case of low-power impinging beams (≈1W), our simulations predict large conversion efficiencies of around 0.8% and 0.01% for SHG and DFG, outperforming previously reported efficiencies in 1-2 orders magnitude and confirming the suitability of this type of plasmonic metasurfaces as a highly-efficient flat platform for non-linear photonics.
AB - Nonlinear metasurfaces based on coupling locally-enhanced plasmonic response to intersubband transitions of multi-quantum-wells have recently provided second-order susceptibilities several orders of magnitude larger than any other non-linear flat structure measured so far. Here, we demonstrate that a proper design of the plasmonic metasurface inclusions can dramatically enhance the overall non-linear response of the structure. The optimized metasurfaces are then applied to achieve efficient second-harmonic generation (SHG) and differential frequency generation (DFG) in the infrared and terahertz frequency bands, respectively. In case of low-power impinging beams (≈1W), our simulations predict large conversion efficiencies of around 0.8% and 0.01% for SHG and DFG, outperforming previously reported efficiencies in 1-2 orders magnitude and confirming the suitability of this type of plasmonic metasurfaces as a highly-efficient flat platform for non-linear photonics.
UR - http://www.scopus.com/inward/record.url?scp=84953726068&partnerID=8YFLogxK
U2 - 10.1109/APS.2015.7304930
DO - 10.1109/APS.2015.7304930
M3 - Conference contribution
AN - SCOPUS:84953726068
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 1084
EP - 1085
BT - 2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - IEEE Antennas and Propagation Society International Symposium, APS 2015
Y2 - 19 July 2015 through 24 July 2015
ER -