Deep Optical Switching on Subpicosecond Timescales in an Amorphous Ge Metamaterial
Abstract
Abstract Active nanostructured optical components show promise as potential building blocks for novel light‐based computing and data processing architectures. However, nanoscale all‐optical switches that have low activation powers and high‐contrast ultrafast switching have been elusive so far. Here, pump–probe measurements performed on amorphous‐Ge‐based micro‐resonator metasurfaces that exhibit strong resonant modes in the mid‐infrared are reported. Relative change is observed in transmittance of Δ T / T ≈ 1 with picosecond (down to τ ≈ 0.5 ps) free carrier relaxation rates, obtained with very low pump fluences of 50 μJ cm −2 . These observations are attributed to efficient free carrier promotion, affecting light transmittance via high quality‐factor optical resonances, followed by an increased electron–phonon scattering of free carriers due to the amorphous crystal structure of Ge. Full‐wave simulations based on a permittivity model that describes free‐carrier damping through crystal structure disorder find excellent agreement with the experimental data. These findings offer an efficient and robust platform for all‐optical switching at the nanoscale.
- Authors:
-
- Emory Univ., Atlanta, GA (United States)
- Cornell Univ., Ithaca, NY (United States)
- Publication Date:
- Research Org.:
- Emory Univ., Atlanta, GA (United States)
- Sponsoring Org.:
- USDOE; US Department of the Navy, Office of Naval Research (ONR); National Science Foundation (NSF)
- OSTI Identifier:
- 1865280
- Alternate Identifier(s):
- OSTI ID: 1785814
- Grant/Contract Number:
- SC0020101; N00014-21-1-2056; NNCI-1542081; DMR-1719875; FG02-12ER16347; CHE-1726536; DE‐FG02‐12ER16347; DE‐SC0020101
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Advanced Optical Materials
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 15; Journal ID: ISSN 2195-1071
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; metamaterials; ultrafast optics; all-optical switching; amorphous germanium; high-q optical resonances; metasurfaces; pump–probe measurements; ultrafast processes
Citation Formats
Lemasters, Robert, Shcherbakov, Maxim R., Yang, Guoce, Song, Jia, Lian, Tianquan, Harutyunyan, Hayk, and Shvets, Gennady. Deep Optical Switching on Subpicosecond Timescales in an Amorphous Ge Metamaterial. United States: N. p., 2021.
Web. doi:10.1002/adom.202100240.
Lemasters, Robert, Shcherbakov, Maxim R., Yang, Guoce, Song, Jia, Lian, Tianquan, Harutyunyan, Hayk, & Shvets, Gennady. Deep Optical Switching on Subpicosecond Timescales in an Amorphous Ge Metamaterial. United States. https://doi.org/10.1002/adom.202100240
Lemasters, Robert, Shcherbakov, Maxim R., Yang, Guoce, Song, Jia, Lian, Tianquan, Harutyunyan, Hayk, and Shvets, Gennady. Tue .
"Deep Optical Switching on Subpicosecond Timescales in an Amorphous Ge Metamaterial". United States. https://doi.org/10.1002/adom.202100240. https://www.osti.gov/servlets/purl/1865280.
@article{osti_1865280,
title = {Deep Optical Switching on Subpicosecond Timescales in an Amorphous Ge Metamaterial},
author = {Lemasters, Robert and Shcherbakov, Maxim R. and Yang, Guoce and Song, Jia and Lian, Tianquan and Harutyunyan, Hayk and Shvets, Gennady},
abstractNote = {Abstract Active nanostructured optical components show promise as potential building blocks for novel light‐based computing and data processing architectures. However, nanoscale all‐optical switches that have low activation powers and high‐contrast ultrafast switching have been elusive so far. Here, pump–probe measurements performed on amorphous‐Ge‐based micro‐resonator metasurfaces that exhibit strong resonant modes in the mid‐infrared are reported. Relative change is observed in transmittance of Δ T / T ≈ 1 with picosecond (down to τ ≈ 0.5 ps) free carrier relaxation rates, obtained with very low pump fluences of 50 μJ cm −2 . These observations are attributed to efficient free carrier promotion, affecting light transmittance via high quality‐factor optical resonances, followed by an increased electron–phonon scattering of free carriers due to the amorphous crystal structure of Ge. Full‐wave simulations based on a permittivity model that describes free‐carrier damping through crystal structure disorder find excellent agreement with the experimental data. These findings offer an efficient and robust platform for all‐optical switching at the nanoscale.},
doi = {10.1002/adom.202100240},
journal = {Advanced Optical Materials},
number = 15,
volume = 9,
place = {United States},
year = {Tue May 11 00:00:00 EDT 2021},
month = {Tue May 11 00:00:00 EDT 2021}
}
Works referenced in this record:
Nanostructured amorphous gallium phosphide on silica for nonlinear and ultrafast nanophotonics
journal, January 2020
- Tilmann, Benjamin; Grinblat, Gustavo; Berté, Rodrigo
- Nanoscale Horizons, Vol. 5, Issue 11
Efficient Nonlinear Metasurface Based on Nonplanar Plasmonic Nanocavities
journal, April 2017
- Wang, Feng; Martinson, Alex B. F.; Harutyunyan, Hayk
- ACS Photonics, Vol. 4, Issue 5
Flat optics with designer metasurfaces
journal, February 2014
- Yu, Nanfang; Capasso, Federico
- Nature Materials, Vol. 13, Issue 2, p. 139-150
Symmetry Breaking in Nanoparticles: Photogenerated Free Carrier-Induced Symmetry Breaking in Spherical Silicon Nanoparticle (Advanced Optical Materials 7/2018)
journal, April 2018
- Rudenko, Anton; Ladutenko, Konstantin; Makarov, Sergey
- Advanced Optical Materials, Vol. 6, Issue 7
Femtosecond-tunable measurement of electron thermalization in gold
journal, November 1994
- Sun, C. -K.; Vallée, F.; Acioli, L. H.
- Physical Review B, Vol. 50, Issue 20
Sub-femtojoule all-optical switching using a photonic-crystal nanocavity
journal, May 2010
- Nozaki, Kengo; Tanabe, Takasumi; Shinya, Akihiko
- Nature Photonics, Vol. 4, Issue 7
Dielectric metasurfaces for complete control of phase and polarization with subwavelength spatial resolution and high transmission
journal, August 2015
- Arbabi, Amir; Horie, Yu; Bagheri, Mahmood
- Nature Nanotechnology, Vol. 10, Issue 11, p. 937-943
Anomalous ultrafast dynamics of hot plasmonic electrons in nanostructures with hot spots
journal, August 2015
- Harutyunyan, Hayk; Martinson, Alex B. F.; Rosenmann, Daniel
- Nature Nanotechnology, Vol. 10, Issue 9
Ultrafast all-optical tuning of direct-gap semiconductor metasurfaces
journal, May 2017
- Shcherbakov, Maxim R.; Liu, Sheng; Zubyuk, Varvara V.
- Nature Communications, Vol. 8, Issue 1
Mid-infrared photonics in silicon and germanium
journal, August 2010
- Soref, Richard
- Nature Photonics, Vol. 4, Issue 8
Subpicosecond Optical Switching with a Negative Index Metamaterial
journal, October 2009
- Dani, Keshav M.; Ku, Zahyun; Upadhya, Prashanth C.
- Nano Letters, Vol. 9, Issue 10
Tailoring the quality factors and nonlinear response in hybrid plasmonic-dielectric metasurfaces
journal, January 2018
- Wang, Feng; Harutyunyan, Hayk
- Optics Express, Vol. 26, Issue 1
Ultrafast All-Optical Switching with Magnetic Resonances in Nonlinear Dielectric Nanostructures
journal, September 2015
- Shcherbakov, Maxim R.; Vabishchevich, Polina P.; Shorokhov, Alexander S.
- Nano Letters, Vol. 15, Issue 10
Spatiotemporal light control with active metasurfaces
journal, May 2019
- Shaltout, Amr M.; Shalaev, Vladimir M.; Brongersma, Mark L.
- Science, Vol. 364, Issue 6441
Ultrafast all-optical switching via coherent modulation of metamaterial absorption
journal, April 2014
- Fang, Xu; Lun Tseng, Ming; Ou, Jun-Yu
- Applied Physics Letters, Vol. 104, Issue 14
Nanostructured Plasmonic Medium for Terahertz Bandwidth All-Optical Switching
journal, October 2011
- Ren, Mengxin; Jia, Baohua; Ou, Jun-Yu
- Advanced Materials, Vol. 23, Issue 46
Ultrafast Electron Dynamics and Optical Nonlinearities in Metal Nanoparticles
journal, March 2001
- Voisin, Christophe; Del Fatti, Natalia; Christofilos, Dimitris
- The Journal of Physical Chemistry B, Vol. 105, Issue 12
Femtosecond carrier dynamics in GaAs
journal, January 1987
- Lin, W. Z.; Fujimoto, L. G.; Ippen, E. P.
- Applied Physics Letters, Vol. 50, Issue 3
Probing the Ultimate Limits of Plasmonic Enhancement
journal, August 2012
- Ciraci, C.; Hill, R. T.; Mock, J. J.
- Science, Vol. 337, Issue 6098
Efficient ultrafast all-optical modulation in a nonlinear crystalline gallium phosphide nanodisk at the anapole excitation
journal, August 2020
- Grinblat, Gustavo; Zhang, Haizhong; Nielsen, Michael P.
- Science Advances, Vol. 6, Issue 34
Optical Properties and Electronic Structure of Amorphous Germanium
journal, January 1966
- Tauc, J.; Grigorovici, R.; Vancu, A.
- physica status solidi (b), Vol. 15, Issue 2
Ultrafast switching of tunable infrared plasmons in indium tin oxide nanorod arrays with large absolute amplitude
journal, February 2016
- Guo, Peijun; Schaller, Richard D.; Ketterson, John B.
- Nature Photonics, Vol. 10, Issue 4
Ultrafast sub–30-fs all-optical switching based on gallium phosphide
journal, June 2019
- Grinblat, Gustavo; Nielsen, Michael P.; Dichtl, Paul
- Science Advances, Vol. 5, Issue 6
All-optical tuning of symmetry protected quasi bound states in the continuum
journal, September 2019
- Karl, Nicholas; Vabishchevich, Polina P.; Liu, Sheng
- Applied Physics Letters, Vol. 115, Issue 14
All-optical switches on a silicon chip realized using photonic crystal nanocavities
journal, October 2005
- Tanabe, Takasumi; Notomi, Masaya; Mitsugi, Satoshi
- Applied Physics Letters, Vol. 87, Issue 15
Lasing in strained germanium microbridges
journal, June 2019
- Armand Pilon, F. T.; Lyasota, A.; Niquet, Y. -M.
- Nature Communications, Vol. 10, Issue 1
Enhancing second-harmonic generation using dipolar-parity modes in non-planar plasmonic nanocavities
journal, January 2019
- Wang, Feng; Manjare, Manoj; Lemasters, Robert
- Optics Letters, Vol. 44, Issue 11
Direct Subpicosecond Measurement of Carrier Mobility of Photoexcited Electrons in Gallium Arsenide
journal, June 1987
- Nuss, M. C.; Auston, D. H.; Capasso, F.
- Physical Review Letters, Vol. 58, Issue 22
Ultrafast all-optical modulation in GaAs photonic crystal cavities
journal, January 2009
- Husko, Chad; De Rossi, Alfredo; Combrié, Sylvain
- Applied Physics Letters, Vol. 94, Issue 2
Suspended low-loss germanium waveguides for the longwave infrared
journal, January 2018
- Osman, A.; Nedeljkovic, M.; Soler Penades, J.
- Optics Letters, Vol. 43, Issue 24
A review of metasurfaces: physics and applications
journal, June 2016
- Chen, Hou-Tong; Taylor, Antoinette J.; Yu, Nanfang
- Reports on Progress in Physics, Vol. 79, Issue 7
Shrinking light to allow forbidden transitions on the atomic scale
journal, July 2016
- Rivera, Nicholas; Kaminer, Ido; Zhen, Bo
- Science, Vol. 353, Issue 6296
Mid-infrared sensing between 52 and 66 µm wavelengths using Ge-rich SiGe waveguides [Invited]
journal, January 2018
- Liu, Qiankun; Ramirez, Joan Manel; Vakarin, Vladyslav
- Optical Materials Express, Vol. 8, Issue 5
Designed ultrafast optical nonlinearity in a plasmonic nanorod metamaterial enhanced by nonlocality
journal, January 2011
- Wurtz, G. A.; Pollard, R.; Hendren, W.
- Nature Nanotechnology, Vol. 6, Issue 2
Time-variant metasurfaces enable tunable spectral bands of negative extinction
journal, January 2019
- Shcherbakov, Maxim R.; Lemasters, Robert; Fan, Zhiyuan
- Optica, Vol. 6, Issue 11
All-Optical Control of Light in Micro- and Nanophotonics
journal, April 2019
- Taghinejad, Mohammad; Cai, Wenshan
- ACS Photonics, Vol. 6, Issue 5
Ultrafast recombination and trapping in amorphous silicon
journal, February 1990
- Esser, A.; Seibert, K.; Kurz, H.
- Physical Review B, Vol. 41, Issue 5
Polarization states synthesizer based on a thermo-optic dielectric metasurface
journal, August 2019
- Bosch, M.; Shcherbakov, M. R.; Fan, Z.
- Journal of Applied Physics, Vol. 126, Issue 7
Tuning of Magnetic Optical Response in a Dielectric Nanoparticle by Ultrafast Photoexcitation of Dense Electron–Hole Plasma
journal, August 2015
- Makarov, Sergey; Kudryashov, Sergey; Mukhin, Ivan
- Nano Letters, Vol. 15, Issue 9