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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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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 Our recent research work on A METASURFACE-INSPIRED
FLEXIBLE STRUCTURE FOR BOOSTING THE SIGNAL-TO-NOISE RATIO (SNR) IN 1.5TMRI
SCANS has been accepted as an
Indian patent, published at the IPO website vide The Patent Office
Journal No. 51/2023. Our recent research work on A MAGNETIC METAMATERIAL
ADD-ON FOR IMPROVING THE SIGNAL-TO-NOISE RATIO OF MAGNETIC RESONANCE IMAGING has been accepted as an Indian patent,
published at the IPO website vide The Patent Office Journal No.
28/2023. 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 T. Bhowmik, B.
Chakraborty, and D. Sikdar, All-Optical High-Contrast
Femtosecond Switching using Nonlinearity from Epsilon-Near-Zero effect in
Plasmonic Metamaterials. Optics Letters, April 2024 (Just
Accepted). [Online] 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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