Conference presentations and research seminars


  • “Topological Physics in Laser-Inscribed Photonic Devices,’’ research seminar at NISER Bhubaneswar, 10 April 2024
  • “Floquet Solitons in Photonic Topological Materials,’’ Asia Light Conference 2024, Singapore, 05-08 March 2024 (Invited)


  • “Topological materials of laser-fabricated photonic lattices,’’ SCOP-2023, PRL Ahmedabad, 29 September 2023 (Invited)

  • “Light transport in periodically modulated waveguide lattices,” IISc-BIU 2023 workshop, 11-12 September 2023

  • Research Overview, IISc-Penn State Joint Virtual Workshop Series, 14 July 2023

  • “Period-doubled Floquet Solitons,” IISc-NTU joint conference, IISc Bangalore, 2-3 March 2023.


  • “Topological Photonic,” One Day Webinar Recent on Trends in Photonics with Applications, 26th November 2022, Sarala Birla University (SBU), Ranchi, India (Invited).

  • “Nonlinear States in Femtosecond Laser-Written Photonic Floquet Topological Materials,” Conference on Optics, Photonics \& Quantum Optics (COPaQ-2022), 13 November 2022, IIT Roorkee, India

  • “Solitons in Photonic Topological Lattices,” research seminar, 23 September 2022, IIT Delhi, India

  • “Nonlinear Photonic Floquet Topological Materials,” Annual Conference on Quantum Condensed Matter (QMAT 2022), 19 September 2022, IIT Kanpur, India

  • “Solitons in Floquet Topological Insulators,” Workshop on Modern Concepts of Topological and Quantum Photonics, 1-3 August 2022, Rostock, Germany, Invited speaker

  • “Nonlinear Topological Photonics: Topological Floquet Solitons,” research seminar at the Technical University of Kaiserslautern, Germany, 28 July 2022

  • “Photonic Topological Material,” International Conference on Condensed Matter & Statistical Physics, Presidency University, Kolkata, 4 May 2022 (Plenary speaker)

  • “Floquet Solitons in Photonic Topological Materials,” as a part of The Cergy-Warwick Seminar Series organized by Cergy Universite Paris (CYU) and University of Warwick (presented virtually). 17 March 2022 (Invited).

  • “Linear and Nonlinear Photonic Topological Materials,” research seminar at CeNSE, IISc Bangalore, India, 22 February, 2022.

  • “Nonlinear Topological Photonics: Observation of Solitons in Floquet systems,” Virtual Online Workshop - Light-Matter Interactions in Low Dimensional and Topological Photonic Materials, 31 January, 2022 (Invited).


  • “Unidirectional Soliton-Like Edge Modes in Nonlinear Floquet Topological Insulators,” in Conference on Lasers and Electro-Optics, OSA Technical Digest (OSA, 2021), paper FTh4H.6, USA, 13 May 2021.

  • “Photonic topological insulators,” webinar organized by R. K. Mission V. C. College, Rahara, India, 31 March 2021 (Invited).

  • “Realization of Unidirectional Soliton-like Edge States in Nonlinear Floquet Topological Insulators,” APS March Meeting 2021, USA, 19 March 2021.


  • “Observation of Topological Band Gap Solitons,” in Conference on Lasers and Electro-Optics, OSA Technical Digest (OSA, 2020), paper FW4A.8, USA, 13 May 2020.

  • “Linear and nonlinear topological photonics,” research seminar at Presidency University, Kolkata, India, 14 February 2020.


  • “Experimental observation of Aharonov-Bohm cages in photonic lattices,” SPIE Photonics West, San Francisco, California, USA, 04 February 2019.

  • “State-recycling and time-resolved imaging in topological photonic lattices”, SPIE Photonics West, San Francisco, California, USA, 04 February 2019.


  • “State-recycling and time-resolved imaging in topological photonic lattices,” The 10th International Conference on Information Optics and Photonics (CIOP), Beijing, China, 08-11 July 2018 (Invited).

  • “Aharonov-Bohm caging in photonic lattices” research seminar at University of Warwick, UK, 08 June 2018.

  • “Laser inscription and artificial crystals of optical waveguides” research seminar at Universit ́e Libre de Bruxelles, Belgium, 24 April 2018.

  • “Synthetic electric and magnetic fields in photonic structures,” research seminar at University of Kalyani, India, 15 February 2018.


  • “Photonic realization of an anomalous topological insulator in a slowly driven lattice,” International Conference on Quantum, Atomic, Molecular and Plasma Physics, Glasgow, UK, 04-07 September 2017.

  • “Photonic flat-band lattices,” International Workshop Flatband Networks in Condensed Matter and Photonics, Center for Theoretical Physics of Complex Systems, Daejeon, South Korea, 28 August - 1 September 2017.

  • “Experimental observation of anomalous topological edge modes in a slowly-driven photonic lattice,” International Workshop on Discrete, Nonlinear and Disordered Optics, Max Planck Institute for the Physics of Complex Systems, Dresden, Germany, 08-12 May 2017.

  • “Realising anomalous Floquet topological insulators using photonic lattices,” research seminar at IISc Bangalore, India, 16 January 2017.


  • “Photonic simulation of solid-state phenomena,” research seminar at IIT Delhi, India, 14 December 2016.

  • “Determining the effective mode index in laser fabricated optical waveguides using Bragg gratings,” in 13th International Conference on Fiber Optics and Photonics, OSA Technical Digest (OSA, 2016), paper Tu3F.3, IIT Kanpur, India, December 2016.

  • “Experimental simulation of solid-state phenomena using Photonic Lattices,” research seminar at University of Chile, Santiago, 2 November 2016.

  • “Photonic lattices,” IPaQS colloquium, Heriot-Watt University, 5 October 2016.


  • “Photonic lattices” research seminar organized by OSA student chapter, IIT Kharagpur, India, 30 December 2015.

  • “Observation of a localized flat-band state in a photonic Lieb lattice,” Topolight 2015 - 8th Optoelectronics and Photonics Winter School, Trento, Italy.


  • “Development of mode-multiplexing/de-multiplexing device based on integrated photonic lanterns,” in 12th International Conference on Fiber Optics and Photonics, OSA Technical Digest (OSA, 2014), paper T2B.7, IIT Kharagpur, India, December 2014.