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Welcome to Sikdar Nanophotonics and Metamaterial Research Group (SNMG) Our
research group led by Dr. Debabrata
Sikdar is dedicated to exploring and designing novel artificial material
composites or metamaterials and metadevices that exhibit extraordinary
ability to manipulate light or electromagnetic waves in general at the
nanoscale. We are designing many novel techniques in theory, modeling and
simulation of light interaction with guided and scattering media, and new
tuneable metadevices. |
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(Interested UG/PG students can join the NPTEL course on Nanophotonics, Plasmonics, and Metamaterials. The enrolment is open at: https://onlinecourses.nptel.ac.in/noc23_ee141/preview) |
(17 Jun, 2022: Dr. Ashish Kumar Chowdhary is the first PhD
student graduated from the SNMG group with
best thesis award) |
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[1] We
are currently looking for Project Engineers in the Development of Thin, Flexible Metamaterials designed to enhance MRI scanning. Join us in this
meaningful endeavour where your contributions can directly impact healthcare
outcomes. Help us shape the future of MRI technology for the better! (Last
date to apply: 5th October, 2023) (A) Candidates
eligible for the post of Assistant
Project Engineer positions can apply by going through the link. [Click here] (B)
Candidates eligible for the post of Project
Engineer positions can apply by going through the link. [Click here] [2]
Vacancies for the positions of Institute Post-Doctoral Fellow (IPDF) are
available. Interested candidates can go through the link. [Click
here] (Last date to apply: 8th October, 2023) For any
queries, you can drop an email to deb[dot]sikdar[at]iitg[dot]ac[dot]in |
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PhD Opportunities We are
currently looking for motivated and curious minds to join our laboratory as
PhD Students for exploring emerging areas of Integrated Nanophotonics, Plasmonics, and Metamaterials based Devices.
If you
are interested, please apply for the relevant Ph.D. position through the IITG Website. For any
queries, you can drop an email to deb[dot]sikdar[at]iitg[dot]ac[dot]in |
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Updates Mr.
Dibaskar has been awarded Prime Minister Research Fellowship (PMRF) in
October 2023. Our
recent research work on Resonating
sub-wavelength metallic wires based pads for boosting signal-to-noise ratio
of birdcage head coils at 1.5T MRI is accepted in the Results in Physics Journal. Our
recent research work on Enhancing
Signal-to-Noise Ratio of Clinical 1.5T MRI using Metasurface-inspired
Flexible Wraps is accepted in the Applied Physics A: Materials
Science & Processing Journal. Mr. Tanmay Bhowmik was
awarded with Best Oral presentation award in Photonics 2023
Conference, IISc Bengaluru, India. Mr. Jegyasu
was awarded with Best Paper Award
in International Electrical Engineering Congress (iEECON2023). Mr. Tanmay Bhowmik
has been selected for the
AWSAR Award 2022,
DST, Govt. of India. [Link] Our
recent research work on Selective
thermal emitters for high-performance all-day radiative cooling was
recognized by 100+ international and national news media (July 2022). [Link] Dr. Ashish Kumar
Chowdhary has been
awarded with best thesis award in the 24th
convocation on 17th Jun 2022. The
research article published in Optics Letters from our group entitled Infrared-blocking
Plasmonic Meta-glasses for Energy-saving Passive Windows, has been
chosen for inclusion in Spotlight
on Optics (May 2022) by Optica
Publishing Group. [Link] Dr.
Ashish Kumar Chowdhary has successfully defended his PhD
dissertation on 1st May 2022. Our
recent research work on broadband perfect metamaterial absorber is featured in the top-downloaded
articles on metamaterials among the journals of Optica Publishing Group
(formerly OSA). [Link]
Ashish
K. Chowdhary has been selected for AWSAR Award 2021,
DST, Govt. of India. Two
contributed papers from our group have been presented in 15th
International Congress on Artificial Materials for Novel Wave Phenomena -
IEEE Metamaterials-2021 on 22nd September 2021. [Link]
Our
recent research work on 'Smart Windows for Automatic Climate Control in
Buildings' was recognized by 160+ international and national news media (May
2021). [Link] Mr.
Tanmay Bhowmik was awarded with the ONR and NSF Student Grant for attending IEEE-Metamaterials-2021
Conference (Sept. 2021). Mr.
Ashish Kumar Chowdhary was awarded the prestigious Incubic Milton Chang
Travel Grant CLEO 2021 (April 2021). Mr.
Jegyasu was awarded Prime Minister Research Fellowship (PMRF) in September
2020. Recent Selected Publications J. Gupta, P. Das,
R. Bhattacharjee and D. Sikdar, Resonating sub-wavelength
metallic wires based pads for boosting signal-to-noise ratio of birdcage head
coils at 1.5T MRI, Results in Physics, 53, 106972, 2023 [Online] J. Gupta, P. Das, R. Bhattacharjee and D. Sikdar, Enhancing signal-to-noise ratio of
clinical 1.5T MRI using metasurface-inspired flexible wraps, Applied Physics A, 129, 725, 2023 [Online] T. Bhowmik, J. Gupta and D. Sikdar, Electro-tunable metasurface for tri-state
dynamic polarization switching at near-infrared wavelengths, Journal of Physics:
Condensed Matter, vol. 35 p. 395701, 2023 [Online]
P. Das, J.
Gupta, D. Sikdar, and R. Bhattacharjee, A smart
metasurface for scanning deep brain tissues at 1.5T MRI, Current Applied Physics, vol. 53, pp 172-180, 2023. [Online] T. Bhowmik, A. K. Chowdhary and D. Sikdar, Polarization-and Angle-insensitive Tunable
Metasurface for Electro-Optic Modulation, IEEE Photonics Technology Letters, vol. 35, no. 16, pp. 879-882, 15 Aug.15, 2023
[Online]. P. Das, J. Gupta,
D. Sikdar, and R. Bhattacharjee, Aperture-patch
sandwich metasurface for magnetic field enhancement in 1.5 T MRI, Magnetic Resonance Imaging, vol. 100, pp 1-9, 2023. [Online] T.
Bhowmik, B. K. Bhowmik, P. K.
Pandey, G. Kumar, and D. Sikdar,
Dual-band electro-optic
modulator based on tunable broadband metamaterial absorber, Optics & Laser Technology, vol. 161, 2023. [Online] Q. Shi,
D. Dong, G. Gervinskas, H. Lin, D. Sikdar, B. Jia, S. Walia, S.
Sriram, M. Bhaskaran, L. W. Yap, and W. Cheng, Soft Plasmene Helical
Nanostructures, Advanced Materials Technologies, 2201866, Jan.
2023 [Online]. T. Bhowmik and D. Sikdar, Electrically-tunable metasurface for
dual-band spatial light modulation using epsilon-near-zero effect, Optics Letters,
4993-4996, 2022 [Online] Important
Links IIT-G,
UK college research helps boost LED performance[Link] Unit
Conversions: Halas Research Group [Link] RefractiveIndex.INFO
Database [Link] IITG
important forms for PG students [Link] IITG
Academic Calendar [Link] Dept.
of EEE, IIT Guwahati [Link] |
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Currently working on Emerging areas of Photonics, Plasmonics, and
Metamaterials Primary
focus on (but not limited to): - Smart tunable optical devices of plasmonic
metals and semiconductors - High speed electro-optic modulators, filters,
switches, on-chip optical interconnects - Plasmon-assisted optical switching, broadband
absorption, ultrasensitive detection, tunable optical/photonic devices etc. - Dynamic tuning in plasmonic/ nanophotonic
meta-systems and devices - RF metamaterials for MRI applications - Graphene-assisted tunable broadband
metamaterial devices -
Directional scattering by dielectric nanoantennas, alternative plasmonic
materials |
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