Metamaterials Strongly Coupled to Intersubband Transitions: Circuit Model and Second Order Nonlinear Processes
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Jump to search filtersSecond harmonic generation from metamaterials strongly coupled to intersubband transitions in quantum wells
Applied Physics Letters
We theoretically analyze the second harmonic generation capacity of two-dimensional periodic metamaterials comprising sub-wavelength resonators strongly coupled to intersubband transitions in quantum wells (QWs) at mid-infrared frequencies. The metamaterial is designed to support a fundamental resonance at ∼30THz and an orthogonally polarized resonance at the second harmonic frequency (∼60THz), while the asymmetric quantum well structure is designed to provide a large second order susceptibility. Upon continuous wave illumination at the fundamental frequency we observe second harmonic signals in both the forward and backward directions, with the forward efficiency being larger. We calculate the overall second harmonic conversion efficiency of the forward wave to be ∼1.3×10-2 W/W2 - a remarkably large value, given the deep sub-wavelength dimensions of the QW structure (about 1/15th of the free space wavelength of 10μm). The results shown in this Letter provide a strategy for designing easily fabricated sources across the entire infrared spectrum through proper choice of QW and resonator designs. © 2014 AIP Publishing LLC.
Coupling between a metasurface and intersubband transitions in a quantum well explained via classical electrodynamics
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Maximizing Strong Coupling between Metasurface Resonators and Intersubband Transitions
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An Electrically Driven Terahertz Modulator with over 20 dB of Dynamic Range
Applied Physics Letters
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Characterization of III-Nitride Nanowires
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Tunable Blue-Violet III-Nitride Nanowire Photonic Crystal Lasers
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IQE Silicon Wafers
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Multi-Color Arrays of Nanowire Photonic Crystal Laser Pixels
Nature Nanotechnology
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Ultra-strong light-matter interaction with mid-infrared metamaterials
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Ultrastrong coupling in the sub-wavelength limit using metamaterial resonators
Proposed for publication in Science.
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Strong coupling between metamaterial resonators and AlAs nano layers
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Mid-infrared metamaterials strongly coupled to intersubband transition
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Active Metamaterial Diffraction Grating
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Ultra-Strong Light-Matter Interaction with Mid-Infrared Metamaterials
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Influence of the Metamaterial Geometry on Ultra-Strong Light-Matter Interaction
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Strong light-matter interaction of metamaterials and intersubband transitions
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Metamaterials in applications: tunable filters and resonant detectors
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Metamaterials in applications: tunable filters and resonant detectors
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Semiconductor Approaches for Tunable Metamaterials in the Infrared
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Strong coupling between metamaterial resonators and AlAs nano layers
Abstract not provided.
Mid-infrared metamaterials strongly coupled to intersubband transition
Abstract not provided.
Resonant metamaterial detectors utilizing THz quantum-cascade lasers
Abstract not provided.
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