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Mid-infrared tunable metamaterials

Patent ·
OSTI ID:1178671
A mid-infrared tunable metamaterial comprises an array of resonators on a semiconductor substrate having a large dependence of dielectric function on carrier concentration and a semiconductor plasma resonance that lies below the operating range, such as indium antimonide. Voltage biasing of the substrate generates a resonance shift in the metamaterial response that is tunable over a broad operating range. The mid-infrared tunable metamaterials have the potential to become the building blocks of chip based active optical devices in mid-infrared ranges, which can be used for many applications, such as thermal imaging, remote sensing, and environmental monitoring.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
9,018,642
Application Number:
13/716,324
OSTI ID:
1178671
Country of Publication:
United States
Language:
English

References (18)

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Dynamic tuning of an infrared hybrid-metamaterial resonance using vanadium dioxide journal July 2008
Electrically tunable infrared metamaterials based on depletion-type semiconductor devices journal November 2012
A metamaterial solid-state terahertz phase modulator journal February 2009
Frequency tunable near-infrared metamaterials based on VO2 phase transition journal January 2009
Superlenses to overcome the diffraction limit journal June 2008
Thin-film sensing with planar terahertz metamaterials: sensitivity and limitations journal January 2008
Liquid crystal clad near-infrared metamaterials with tunable negative-zero-positive refractive indices journal January 2007
Mid-infrared doping tunable transmission through subwavelength metal hole arrays on InSb journal January 2009
Determination of Generalized Permeability Function and Field Energy Density in Artificial Magnetics Using the Equivalent-Circuit Method journal January 2007
Magnetic Response of Metamaterials at 100 Terahertz journal November 2004
Effect of thin silicon dioxide layers on resonant frequency in infrared metamaterials journal January 2010
Active tuning of mid-infrared metamaterials by electrical control of carrier densities journal January 2012
Memory Metamaterials journal August 2009

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