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Creators/Authors contains: "Talukdar, Tahmid H"

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  1. ; ; ; (, Porous Semiconductors Science and Technology Conference 2024 Technical Digest)
    Accepted Manuscript Full Text Available
  2. ; ; ; (, Optica Publishing Group)
    We present an approach to achieve highly responsive structural color utilizing dual-band porous silicon rugate filter metamaterials combined with dichromatic laser illumination. Spatiotemporally resolved sensing experiments are reported. 
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  3. ; ; ; (, Advanced Optical Materials)
    Full Text Available 
  4. ; ; (, ACS Photonics)
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  5. ; ; (, Conference on Lasers and Electro-Optics, Technical Digest Series)
    We implement 1D moiré patterns in silicon photonic nanowires to demonstrate a wide range of effects such as tunable photon transport and localization, high-Q cavities and coupled resonator optical waveguide behavior by modulation of lattice mismatch and crystal length. © 2022 The Author(s) 
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  6. ; ; (, 2021 IEEE 17th International Conference on Group IV Photonics (GFP))
    Analogous to twistronic and twistoptic systems derived from 2D moiré potentials wherein the twist angle is a key parameter, we modulate the 1D moiré pattern in a silicon nanowire and observe lattice mismatch and phase to be critical parameters for controlling photon transport or localization. 
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  7. ; ; ; (, Conference on Lasers and Electro-Optics, Technical Digest Series)
    We report the fabrication of gradient index flat optics and waveguides using the ‘nanoimprinting refractive index’ (NIRI) technique applied to mesoporous silicon substrates. Optical wavefront shaping and waveguiding are demonstrated in the visible and near-infrared respectively. 
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  8. ; (, Conference on Lasers and Electro-Optics OSA Technical Digest (Optical Society of America, 2021))
    We demonstrate how a simple 1D flat lens can be utilized to not only focus light but to generate non-paraxial accelerating beams. We further report how illumination angle and wavelength degrees of freedom allow dynamic transition between these two functionalities. 
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  9. ; ; ; ; (, Conference on Lasers and Electro-Optics OSA Technical Digest (Optical Society of America, 2021))
    We report a novel colorimetric sensing paradigm using multi-chromatic light from an RGB laser combined with a structural color sensor for fast, ultra-sensitive, and spatio-temporally resolved detection of surface biomolecules by human eye or smartphone. 
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  10. ; ; (, ACS Applied Nano Materials)
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