20 January 2012 Spectral selective absorption enhancement from stacked ultra-thin InGaAs/Si Fano resonance membranes
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Abstract
We report here modified absorption property of InGaAs nano-membrane on a Fano filter made of patterned single crystalline silicon nano-membrane transferred onto glass substrate. Placement of an ultra-thin InGaAs film on Si Fano resonant membrane enhances the absorption with simulated enhancement factor ~35 and measured enhancement factor of ~26. Leaky modes in the photonic crystal (PC) consist of high field standing waves that can be coupled to the out of plane radiation mode provided by lattice matching of the PC. We will present simulation, device fabrication and experimental characterization of stacked ultra-thin InGaAs/Si Fano resonance membrane in the IR regime.
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Arvinder Singh Chadha, Arvinder Singh Chadha, Weiquan Yang, Weiquan Yang, Tapas K. Saha, Tapas K. Saha, Santhad Chuwongin, Santhad Chuwongin, Yichen Shuai, Yichen Shuai, Weidong Zhou, Weidong Zhou, Zhenqiang Ma, Zhenqiang Ma, Gail J. Brown, Gail J. Brown, } "Spectral selective absorption enhancement from stacked ultra-thin InGaAs/Si Fano resonance membranes", Proc. SPIE 8268, Quantum Sensing and Nanophotonic Devices IX, 82680G (20 January 2012); doi: 10.1117/12.907484; https://doi.org/10.1117/12.907484
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