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アフシャン ベガム アフシャン ベガム
Address
305-0003 茨城県つくば市桜3-13 [アクセス]

研究内容

Keywords

Topological Photonics, Photonic Crystals, Optical waveguides, Silicon & GaAs material, FEM computation

My technical interests in very wide terms is Topological Photonics, creating a one-way photonic waveguide paving way to a secure quantum network for communication & monetary transaction. It includes study of photons, their chiral nature, one-way waveguides & its fabrication. I focus on realizing Photonic Crystal Dirac cones in Silicon and Gallium Arsenide. Dirac cones are known for their linear dispersion, which will aid in creating lossless waveguides by exploring topological aspects. My analysis methodology includes semi-analytical modelling of secular equations for dispersion in waveguides, mathematical analysis by FEM & MATLAB. I have fabricated Photonic Crystal arrays, grating couplers & line-defect waveguides by CMOS-compatible techniques in SOI. Currently, I am learning thin film deposition & analysis techniques for Silicon Dioxide, to enhance light coupling to waveguides.

researchPicture

Grating in Silicon wafer, aspect ratio of 60 nm / 60 nm.
Fabrication date 08 January 2021

出版物2004年以降のNIMS所属における研究成果や出版物を表示しています。

所属学会

Japan Physical Society, SPIE, OSA - The Optical Society, Institute of Electrical and Electronics Engineers, Optical Society of India

受賞履歴

  • NIMS Student Seminar Award, Doctoral course, year 2. Title, "Scheme to utilize Photonic Crystal Dirac Cone for waveguiding & lasing demonstration" (2020)
  • NIMS Student Seminar Award, Doctoral course, year 1. Title, "Topological Waveguide for Entangled Photon Pair Dissociation" (2019)

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