Biswajit Pathak Postdoctoral Research Scientist

Dr

Biswajit Pathak DPhil MSc

Postdoctoral Research Scientist

TEL: 07427601051
COLLEGE: Kellogg College
  • Biography
  • Research
  • Publications
  • Awards and Achievements

Biography

Biswajit Pathak is a Postdoctoral Research Scientist at the Department of Engineering Science and a Research Member of Common Room of Kellogg College. His current research work involves design and implementation of new adaptive optics based optical microscope systems for neuroscience applications. Prior to this he worked as a Postdoctoral Research Associate in the Perception Laboratory (University of Oxford) during which he worked towards the development of a programmable aperture based imaging system for high resolution in-vivo imaging of the human retina in an adaptive optics scanning laser ophthalmoscope (AOSLO). Biswajit completed his PhD in the year 2017 in both theoretical and experimental optics from Indian Institute of Technology Guwahati, India where he developed a grating array based zonal wavefront sensor using computer generated holography technique. He received his MSc in Applied Physics with specialization in Biomedical Optics from Indian Institute of Technology (ISM) Dhanbad, India in the year 2011.

Research Interests

  • Adaptive Optics
  • Retinal Imaging
  • Optical Microscopy
  • Wavefront Sensors

Related Academic

Patents:

Bosanta R. Boruah, Alika Khare, Biswajit Pathak and Rahul Kesarwani “System, Apparatus And Method for Monitoring of Surface Profile and Thickness Measurement in Thin Films”, US Patent Application No.: 16/061,615, Publication No.: US 2020/0024727 A1, Publication Date: 23/01/2020.

Biswajit Pathak, Rahul Kesarwani, Bosanta R. Boruah and Alika Khare “System, Apparatus And Method for Monitoring of Surface Profile and Thickness Measurement in Thin Films”, Indian Patent Application No.: 4088/DEL/2015, Application Date: 12/12/2015, Publication Date: 16/06/2017.

Biswajit Pathak and Bosanta R. Boruah “A Method and Device for Zonal Wavefront Sensing by Beam Splitting”, Indian Patent Application No.: 3935/DEL/2014, Application Date: 26/12/2014, Publication Date: 01/07/2016.

Biswajit Pathak and Bosanta R. Boruah “A Method and Device for Zonal Wavefront Sensing via Sequential Spatially Shifted Grating Array Patterns”, Indian Patent Application No.: 3752/DEL/2014, Application Date: 18/12/2014; Publication Date: 24/06/2016.

Book Chapter:

Biswajit Pathak, Laura Young and Hannah Smithson, Medical Image Understanding and Analysis "Simultaneous Optimisation of Confocal and Non-confocal Images in an AOSLO with a Reconfigurable Aperture Pattern" ISBN 978-3-030-52791-4, Pages 410-419, Springer International Publishing (2020).

Refereed Journals:

Biswajit Pathak and Bosanta R. Boruah, “A Zonal Wavefront Sensor with Multiple Detector Planes”, Journal of Optics (IOP), Vol. 20(3), 035604 (2018).

Biswajit Pathak and Bosanta R. Boruah, “Improvement in Error Propagation in the Shack-Hartmann type Zonal Wavefront Sensors”, Journal of Optical Society of America A, Vol. 34(12), 2194-2202 (2017).

Biswajit Pathak and Bosanta R. Boruah, “Zonal Wavefront Sensing with Enhanced Spatial Resolution”, Optics Letters, Vol. 41(23), 5600-5603 (2016).

Biswajit Pathak, Suraj Kumar and Bosanta R. Boruah, “Zonal Wavefront Sensing Using a Grating Array Printed on a Polyester Film”, Review of Scientific Instruments, Vol. 86(12), 125002 (2015).

Biswajit Pathak and Bosanta R. Boruah, “Improved Wavefront Reconstruction Algorithm for Shack-Hartmann Type Wavefront Sensors”, Journal of Optics (IOP), Vol. 16(5), 055403 (2014).

Conference Proceedings:

Biswajit Pathak and Bosanta R. Boruah, “Investigation of Algorithm Discretization Error in a Zonal Wavefront Estimation Process”, Proceedings of SPIE: 9739 973916 (2016).

Biswajit Pathak and Bosanta R. Boruah, “Binary Hologram Based High Speed Zonal Wavefront Sensing with Reduced Estimation Time”, Proceedings of SPIE: 9741 97410T (2016).

Biswajit Pathak and Bosanta R. Boruah, “Reduction in the Amount of Crosstalk with Reduced Number of Focal Spot Rows in a Grating Array Based Zonal Wavefront Sensor”, Proceedings of SPIE: 9654 965414 (2015).

Biswajit Pathak and Bosanta R. Boruah, “Analysis of Error Propagation in an Improved Zonal Phase-Gradient Model”, Proceedings of SPIE: 9272 92721Y (2014).

Biswajit Pathak and Bosanta R. Boruah, “Zonal Wavefront Estimation Using an Array of Hexagonal Grating Patterns”, Proceedings of AIP: 1620, pp. 86-91 (2014).

Biswajit Pathak, Ankita Bhuyan and Debajyoti Barooah, “Gray-Level Co-occurrence Matrix Implementation Based on Edge Detection Information for Surface Texture Analysis”, Proceedings of ACEEE, pp. 348-352, DOI: 03.AETS.2014.5.360 (2014).

Biswajit Pathak, Abhijit Das and Bosanta R. Boruah, “High-Speed Zonal Wavefront Sensing”, Proceedings of SPIE: 8557 85570A (2012).

Awards and Achievements

  • Received best poster presentation award for the paper entitled “Zonal Wavefront Sensing with Enhanced Spatial Resolution and Improved Centroid Detection Accuracy”, in the International Topical Meeting on Applied and Adaptive Optics, 2017 (INTOPMAA), organized by IIST, Kerala, India.
  • Received Departmental (Physics, IITG) best paper award for the paper entitled “Liquid Crystal Spatial Light Modulator Based Wavefront Sensing and its Application”, in the Research Conclave, 2017, organized by IIT Guwahati, India.
  • Received Optical Society of India second best contributory paper award in the oral session for the paper entitled “Spatial Resolution Enhancement in a Grating Array Based Zonal Wavefront Sensor”, in the International Conference on Light and Light based Techology, 2016, held at Tezpur University, India.
  • Received Optical Society of India second best contributory paper award in the poster session for the paper entitled “Zonal Wavefront Sensing with Improved Accuracy”, in the International Conference on Light and Light based Techology, 2016, held at Tezpur University, India.
  • Received 1st runner-up for the paper entitled “Wavefront Sensing Using Computer Generated Holography Technique”, in the Research Conclave organized by IIT Guwahati during 17-20 March, 2016.
  • Received “SPIE Student Officer Travel Grant” (USD 3190) to attend “SPIE Photonics West-2016” at San Francisco, California, USA from 13-18 Feb, 2016, organized by SPIE.
  • Selected for the prestigious “Newport Spectra-Physics Research Excellence Travel Awards” (USD 750) to attend “SPIE Photonics West-2016” at San Francisco, California, USA from 13-18 Feb, 2016, organized by SPIE.
  • Won cash prize of USD 300 for the project proposal entitled “Development of a Bio-speckle Analyser with an Edge-detector Operator” in the “GBP`s Talent Search Contest On Innovative Research Ideas Leading To Entrepreneurial Venture In Biotechnology And Allied Areas” in the Assam Biotech Conclave, organised by Guwahati Biotechnology Park, IITG during, 20-21 November, 2015.
  • Selected as the Founder President of SPIE IIT Guwahati Student Chapter for the year 2015-2016 and during this tenure - led the team to successfully organize several symposiums and outreach activities in different universities and colleges in North-East India.
  • The Journal entitled “Improved Wavefront Reconstruction Algorithm for Shack-Hartmann Type Wavefront Sensors”, Journal of Optics (IOP), Vol. 16 (5) 055403(2014) was selected as the Journal of Optics paper of the week during 18-25, April 2014.
  • Received the best paper award in the Optical Instrumentation & Techniques category for the paper entitled “Zonal Wavefront Estimation Using an Array of Hexagonal Grating Patterns”, in the OPTICS’14: International Conference on Light, 2014, held at Kerala, India.
  • Received the best oral presentation award in the Optical Instrumentation and Optical Metrology categories for the paper entitled “An Improved Zonal Wavefront Reconstructor Slope Geometry”, in the XXXVII National Symposium of Optical Society of India, 2013, held at Pondicherry, India.
  • Received the Optical Society of America best student contributory paper award for the paper entitled “An Improved Slope Model for Zonal Wavefront Reconstruction”, in the First IITG OSA Student Chapter Workshop on Optics, 2012, held at IIT Guwahati, India