Research

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Research Interests

I am currently working on development of highly nonlinear advanced glass based specialty optical fibers for nonlinear photonic applications. My research interests include…

  1. Nonlinear Fiber Optics
  2. Photonic Crystal Fibers
  3. Supercontinuum Generation
  4. Fiber Saturable Absorbers
  5. Fiber Lasers and Amplifiers

Research Experience

April – Sept 2019Newton-Bhabha Fellow Mid-Infrared Supercontinuum Generation in doped Solid-core Photonic Crystal Fibers Prof. Ajoy Kar, Institute of Photonics and Quantum Sciences, Heriot-Watt University, UK
Feb – Mar 2019Visiting Research Fellow Development of ultra-broadband (1100-2200nm) light sources based on modified nano-engineered silica glass optical fibers doped with bismuth and multiple rare-earths toward OCT applications Dr. Mário F. S. Ferreira and    Dr. Margarida M. R. Facão, Institute of Nanostructures, Nanomodelling and Nanofabrication, University of Aveiro and Dr. Ana Maria S. Rocha, Institute of Telecommunications, University of Aveiro, Portugal
Aug 2015 – presentAcSIR PhD Research Scholar Development of Advanced Glass Based Specialty Optical Fibers for Nonlinear Photonic Applications (such as doped and microstructured optical fibers based Supercontinuum Light Sources, Fiber Saturable Absorbers, Fiber Lasers and Amplifiers) Dr. Mukul Chandra Paul and Dr. Shyamal Kumar Bhadra. Fiber Optics and Photonics Division, CSIR-Central Glass and Ceramic Research Institute, Kolkata, India.
Jan 2015 – May 2015Research Assistant The study of random lasing phenomenon in disordered media Dr. Sushil Mujumdar. NOMOL, Tata Institute of Fundamental Research, Mumbai.
Jul 2014 – Dec 2014Research Assistant The study of nonlinear optical properties of different samples using Z Scan method. Dr. S. Venugopal Rao. Advanced Center for Research in High Energy Materials, Hyderabad.
Dec 2013 – Jun 2014Master’s Thesis Student The study of random lasing phenomenon in surface plasmon waveguides. Dr. D. Narayana Rao, Laser Lab, School of Physics, University of Hyderabad, Hyderabad.
May 2013 – Jul 2013Summer Research Assistant Theoretical expression for nonlinear RI of monolayer, bilayer and multilayer Graphene. Dr. Ji Wei. Femtosecond Laser Spectroscopy Lab, National University of Singapore, Singapore.
Sept 2012 – Mar 2013Project Student (along with regular academics) Laser direct-writing by 2-photon polymerization using LabVIEW.Synthesis of self-assembled Fe-doped Cu2O nanoparticles and its NLO properties. Dr. D. Narayana Rao. Laser Lab, School of Physics, University of Hyderabad, Hyderabad.
May 2012 – Aug 2012INSPIRE Summer Research Assistant Nonlinear Optical properties of Cu-doped CdS nanoparticles.Structural and linear optical properties of Cu doped ZnS nanopowders. Dr. D. Narayana Rao, Laser Lab, School of Physics, University of Hyderabad, Hyderabad.
Sept 2011 – Mar 2012Project Student (along with regular academics) Synthesis of self-assembled Ag-doped Cu2O nanoparticles and its NLO properties. Preparation, characterization and up-conversion luminescence properties of rare earth doped CdMnS heat treated nanopowders. Dr. D. Narayana Rao. Laser Lab, School of Physics, University of Hyderabad, Hyderabad.
May 2011 – Aug 2011INSPIRE Summer Research Assistant Laser-assisted synthesis of Au-Ag alloy nanoparticle with tunable SPR frequency.Synthesis and Characterization of Au Colloidal Nanoparticles by laser Irradiation. Dr. D. Narayana Rao. Laser Lab, School of Physics, University of Hyderabad, Hyderabad.  

Scientific Talks

  1. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Fabrication, Characterization and Applications of UHNA GeO2-doped Fiber” Contributed Talk on September 23, 2017 at 5th National Conference on Condensed Matter Physics and Applications, at Manipal Institute of Technology, Manipal, India.
  2. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Development of Highly Nonlinear Speciality Optical Fibers” Contributed Talk at SERC School on Lasers and Nonlinear Optics, during April 11, 2016 at Pondicherry University, Pondicherry, India.
  3. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Speciality Optical Fibers for Nonlinear Photonic Applications” Seminar Talk on February 11, 2019, at Department of Physics, University of Aveiro, Aveiro, Portugal.
  4. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Next Generation Fiber-based Supercontinuum Light Sources” Invited Talk on 24 September 2017, Indo-German Convention of Lindau Alumni (IGCLA) 2017 at Kasturba Medical College, Manipal University, Manipal, India.
  5. P. Harshavardhan Reddy, M. C. Paul and S. K. Bhadra “Fiber-based Photonic Technologies for Healthcare and Medicine” Invited Talk on 18 September 2016, at Indo-German Convention of Lindau Alumni 2016 at Kasturba Medical College, Manipal University, Manipal, India.

Honors, Awards and Fellowships

July 2019Represented India at Science and Policy Making Summit at UK Parliament, London House of Lords, UK Parliament, Newton Fund and British Council, United Kingdom
Nov 2018The Newton-Bhabha Fellowship British Council, United Kingdom and Department of Science and Technology, Government of India
Aug 2015Innovation in Science Pursuit for Inspired Research (INSPIRE) Fellowship. IF150744 Department of Science and Technology, Government of India.
May 2013                   Summer Internship Program for International Students (SIPIS) Fellowship Department of Physics, National University of Singapore, Singapore.
 May 2013National Photonics Fellowship 2013 (shortlisted and declined due to pre-acceptance of SIPIS) Department of Information Technology, Government of India.
Jul 2012  DST-DFG Lindau Fellowship for participating in 62nd Lindau Nobel Laureates Meeting. Department of Science and Technology, India and German Research Foundation, Germany
Feb 2011Finalist, Mimamsa Quiz 2011 (a national level science competition) Indian Institutes of Science Education and Research, Pune, India.
Oct 2010Winner, JSC Science Quiz 2011 (a university level science competition) University of Hyderabad, Hyderabad, India.
Aug 2009Innovation in Science Pursuit for Inspired Research (INSPIRE) Scholarship. 764S/2009 Department of Science and Technology, Government of India.