Rajib Ratan Ghosh

Rajib Ratan Ghosh

PhD Research Scholar

Indian Institute of Technology Delhi

Biography

Rajib Ratan Ghosh is currently a Ph.D. Research Scholar in the Electrical Engineering Department at Indian Institute of Technology Delhi, India. He is working under the supervision of Prof. Anuj Dhawan in the Nano Photonic and Plasmonic Laboratory (NPPL) . His research interests span the areas of programmable integrated photonics, photonic computation, plasmonics, optical sensors, and Surface Enhanced Raman Scattering (SERS).

He was selected for the prestigious scheme “Visvesvaraya PhD Scheme for Electronics & IT” by the Ministry of Electronics & Information Technology (MeitY), Government of India. During his PhD at IIT Delhi, he worked towards the design of nanophotonic and plasmonic devices for programmable integrated photonics and sensing. In the last few years, he has published more than 14 articles/patents/presentations in well-known journals and conferences, such as “Nature Scientific Reports,” “JOSA B,” “OSA Continumm,” “Optics Communication,” and “SPIE.”.

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Interests
  • Silicon photonics
  • Plasmonics
  • Optical interconnect
  • Optical Sensor
  • Active metasurface
Education

  • PhD in Electrical Engineering, 2022

    IIT Delhi

  • M. Tech in Electronics and Communication Engineering, 2015

    IIT (ISM) Dhanbad

  • B. Tech in Electronics and Communication Engineering, 2012

    WBUT Kolkata

Projects

PhD Thesis
DESIGN AND ANALYSIS OF NANOPHOTONIC AND PLASMONIC DEVICES FOR PROGRAMMABLE INTEGRATED PHOTONICS AND SENSING
M. Tech Thesis
DESIGN AND ANALYSIS OF PHOTONIC CRYSTAL BASED BROADBAND TRANSVERSE ELECTRIC (TE) PASS POLARIZER

Recent Works

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Skills

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CAD Tools

Lumerical FDTD/Mode/Device/Interconnect, RSoft Photonic Device Tools, Comsol Multiphysics, KLayout, Mentor Graphics

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Characterization Tools

Near-field scanning optical microscopy (NSOM), Atomic force microscopy (AFM), Raman spectroscopy, and Spectroscopic ellipsometry

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Deposition & Fabrication Tools

Sputter deposition, Atomic layer deposition (ALD), Pulsed laser deposition (PLD), Thermal Evaporation, Thermal probe pattering (SwissLitho NanoFrazor), and Focused ion beam (FIB) technique.

Publications

Quickly discover relevant content by filtering publications.
Rajib Ratan Ghosh, Anuj Dhawan (2022). Integrated non-volatile plasmonic switches based on phase-change-materials and their application to plasmonic logic circuits. Nature Scientific Reports.

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Yashna Sharma, Rajib Ratan Ghosh, Vaibhav Sapra, Vipul Jalal, Kaleem Ahmed, Anuj Dhawan (2022). Plasmonic switches based on arrays of plasmonic nanostructures surrounded by VO2 thin films. Proc. SPIE 10926, Quantum Sensing and Nano Electronics and Photonics XVI, 109262S (1 February 2019).

DOI

Rajib Ratan Ghosh, Priyanka Bhardwaj, Nitin Gupta, Senthil Subramanian, Anuj Dhawan (2022). Broadband electro-optic modulator based on a phase-change material embedded in silicon photonic crystal slab waveguide. Proc. SPIE 10923, Silicon Photonics XIV, 109231V (4 March 2019).

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Nitin Gupta, Rajib Ratan Ghosh, Anuj Dhawan (2022). Nanoholes arrays as effective SERS substrates with multiple wavelength SERS response and large electromagnetic SERS enhancement factors. Proc. SPIE 10894, Plasmonics in Biology and Medicine XVI, 1089418 (7 March 2019).

DOI

Rajib Ratan Ghosh, Janib Bashir, Smruti R. Sarangi, Abhijit Das, Anuj Dhawan (2022). Slotted electro-optic ring resonator as a tunable optical power splitter. Proc. SPIE 10923, Silicon Photonics XIV, 109231U (4 March 2019).

DOI

Yashna Sharma, Mangesh Jaiswal, Rajib Ratan Ghosh, Anuj Dhawan (2022). Hydrogen sensors based on plasmonic nanostructures present on palladium films. Proc. SPIE 11028, Optical Sensors 2019, 110282Z (11 April 2019).

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Rajib Ratan Ghosh, Priyanka Bhardwaj, Senthil Subramanian, Mangesh Jaiswal, Anuj Dhawan (2022). Design of electro-optic modulators and switches based on graphene and phase change materials. Proc. SPIE 11031, Integrated Optics: Design, Devices, Systems, and Applications V, 110311F (26 April 2019).

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Rajib Ratan Ghosh, Abhijit Das, Arun Thomas, Mangesh Jaiswal, Anuj Dhawan (2022). Design and modeling of long-range hybrid plasmonic waveguides. Integrated Optics: Design, Devices, Systems, and Applications V, 110311E (26 April 2019).

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Priyanka Bhardwaj, Rajib Ratan Ghosh, Abhijit Das, Anuj Dhawan (2022). Integrated electro-optic tunable power splitter based on microring resonators having interleaved PN junctions. Proc. SPIE 11364, Integrated Photonics Platforms: Fundamental Research, Manufacturing and Applications, 113641J (2 April 2020).

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Rajib Ratan Ghosh, Janib Bashir, Smruti R Sarangi, Anuj Dhawan (2022). SpliESR: Tunable Power Splitter Based on an Electro-Optic Slotted Ring Resonator. Optics Communications.

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Rajib Ratan Ghosh, Priyanka Bhardwaj, and Anuj Dhawan (2022). Numerical modeling of integrated electro-optic modulators based on mode-gap shifting in photonic crystal slab waveguides containing a phase change material. Journal of the Optical Society of America B.

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Rajib Ratan Ghosh, Anuj Dhawan (2022). Extremely large near-field enhancements in the vicinity of plasmonic nanoantennas on top of bull’s eye structures exhibiting the extraordinary transmission of light. OSA Continuum.

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Rajib Ratan Ghosh, Arun Thomas, Priyanka Bhardwaj, Senthil Subramanian, Kaleem Ahmed, Anuj Dhawan (2021). Design of long-range hybrid plasmonic waveguides. Proceedings Volume 10914, Optical Components and Materials XVI; 109141Z (2019).

DOI

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