Jinal Tapar

Jinal Tapar

PhD graduate

Biography

Jinal Tapar has completed her Ph.D. under the guidance of Dr. Naresh Emani at the department of Electrical Engineering, IIT Hyderabad. Her research interest spans Semiconductor Nanophotonics, Non-Hermitian systems, All-dielectric tunable metasurfaces. In her Ph.D. with Dr. Emani’s group, she investigated the prospects of parity-time symmetric nanophotonic devices for light generation and manipulation bridging nanophotonics and quantum physics. Jinal is an active student member of SPIE, OSA, now renamed Optica, and IEEE Photonics society. She has published four journal papers and has presented in premier national and international conferences like META, SPIE, FiO, ICEE etc., resulting in 8 proceedings. For more details, please see her current CV.

Interests

  • Active Nanophotonics
  • Semiconductor Reconfigurable Metasurfaces
  • Non-Hermitian Photonics
  • Simulation and Modeling

Education

  • PhD in Electrical Engineering, 2021

    Indian Institute of Technology Hyderabad

  • MTech in ECE, 2015

    Amravati University

  • BTech in Instrumentation and Electronics, 2010

    Government College of Engineering, Amravati

Experience

 
 
 
 
 

External Researcher (INUP)

Indian Institute of Technology Bombay

2016 – 2017 Mumbai
Fabrication of gate-all-around (GAA) nanopillar Tunnel FET device.
 
 
 
 
 

Lecturer

HVPM College Of Engineering, Amravati

2015 – 2017 Amravati
Teaching, lab courses, writing proposals.

Research

Ph.D. Thesis

Among many emerging technologies, photonics and quantum computing are two important technologies envisaged to revolutionize the next-gen computing era. Nanophotonics is the science of light generation and manipulation at nanoscale (chip-scale) dimensions. At nanoscale dimensions, interesting quantum phenomena open the door to novel functionalities. Bridging nanophotonics and quantum physics holds the key to both these emerging technologies. The concept of Parity-Time (PT) symmetry initially conceived within the context of quantum mechanics has found a conducive platform in optics due to the flexibility of judiciously providing gain and loss in an optical system. We have explored a parity-time (PT) symmetric semiconductor metasurface for light emission and dynamic wavefront manipulation. Some of the key challenges that we have addressed while working on my PhD thesis project are outlined below:

Beam steering through dynamic gain-loss modulation

In this work we have explored methods to improve gain in semiconductor nanostructures for designing active, PT-symmetric nanophotonic devices.

Optical Gain in Semiconductor Nanostructures

In this work, we have explored methods to improve gain in semiconductor nanostructures for designing active, PT-symmetric nanophotonic devices.

Spectral Singularities in PT-symmetric Metasurfaces

In this work, we have explored the novel concept of parity-time (PT) symmetry to realize a cavity that simultaneously acts as a gain media and provides high-Q for amplification at a sub-wavelength scale.

Publications

Journal Articles

  1. Jinal Kiran Tapar, Saurabh Kishen and Naresh Kumar Emani. Dynamically Tunable Asymmetric Transmission in PT-Symmetric Phase Gradient Metasurface. ACS Photonics, (2021). [ doi ]
  2. Jinal Kiran Tapar, Saurabh Kishen and Naresh Kumar Emani. Spectral singularities and asymmetric light scattering in PT-symmetric 2D nanoantenna arrays. Optics Letters, 45, 18, pp. 5185-5188 (2020). [ doi ]
  3. Jinal Kiran Tapar, Saurabh Kishen, Kumar Prashant, Kaushik Nayak and Naresh Kumar Emani. Enhancement of the optical gain in GaAs nanocylinders for nanophotonic applications. Journal of Applied Physics, 127, 153102 (2020). [  doi ]
  4. Saurabh Kishen, Jinal Kiran Tapar and Naresh Kumar Emani. Enhanced light emission from gap plasmons in nano-strip MIM tunnel junctions. Journal of Optics, 22, 095006 (2020). [ doi ]

Journal Articles Under Review/Preparation

  1. Jinal Kiran Tapar, Saurabh Kishen and Naresh Kumar Emani. Generalized Kerker effect in PT-symmetric nanoantenna array (Manuscript under review).
  2. Vinod Sharma, Jinal Kiran Tapar, Saurabh Kishen, and Naresh Kumar Emani. Tunable mid-infrared photodetection usinggraphene nanoribbons (Manuscript under review).
  3. Saurabh Kishen, Jinal Kiran Tapar, and Naresh Kumar Emani. Tunable Directional Emission from Electrically-driven Nanostrip Tunnel Junctions (Manuscript under preparation).

Conference Proceedings/Talks

  1. Jinal Kiran Tapar. Non-Hermitian nanophotonics: Tailoring light with gain and loss. SPIE IITB student chapter Online Invited Lecture Series - 2021 . (Invited Talk)
  2. Jinal Kiran Tapar, Saurabh Kishen and Naresh Kumar Emani. Dynamically Tunable Asymmetric Transmission in PT symmetric Metasurfaces Proceedings Volume 11796, Active Photonic Platforms XIII; 1179617, (2021). (Oral)
  3. Jinal Kiran Tapar, Saurabh Kishen and Naresh Kumar Emani. Spectral singularities and broadband unidirectional invisibility in 2D PT-symmetric metamaterial. META, University of Warsaw, Poland, 20-23 July 2021. (Poster)
  4. Jinal Kiran Tapar, and Naresh Kumar Emani. Tunable Spectral Singularities with Asymmetric Directional Response in PT-symmetric 2D Nanoantenna Array. In Frontiers in Optics, pp. FM2E-3. Optical Society of America, Sep 2020. (Oral)
  5. Jinal Kiran Tapar, and Naresh Kumar Emani. Exceptional scattering in PT-symmetric GaInP nanoantenna metasurfaces. Photonics and Plasmonics symposia, IEEE ICEE, IIT Delhi, 26-28 November 2020. (Best Poster Award)
  6. Saurabh Kishen, Jinal Kiran Tapar and Naresh Kumar Emani. Enhanced light generation due to hybridization of lattice and gap plasmon modes in periodic MIM tunnel junction. META, University of Warsaw, Poland, 20-23 July 2021. (Poster)
  7. Ramya Akshita, Jinal Kiran Tapar and Naresh Kumar Emani. Experimental Verification of Enhanced Photoluminescence in p-doped GaAs using Fluorescence Lifetime Measurements. IEEE Workshop on Recent Advances in Photonics (WRAP), pp. 1-3, Dec 2019 . (Poster)
  8. Saurabh Kishen, Jinal Kiran Tapar and Naresh Kumar Emani. Study of Gap Plasmons in 2D Finite Metal-InsulatorMetal Tunnel Junctions. IEEE Workshop on Recent Advances in Photonics (WRAP), pp. 1-3, Dec 2019 . (Poster)
  9. Jinal Kiran Tapar, Saurabh Kishen, Kaushik Nayak and Naresh Kumar Emani. Optimizing the Gain in Semiconductor Nanostructures for All-Dielectric Active Metamaterial Applications, ICMAT, Marina Bay Sands, Singapore, 23-28 June 2019. (Poster)

Contact

  • jinal [dot] tapar18 [at] gmail [dot] com
  • (+91) 9665276966