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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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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 |
Updates Our first experimental research work by Jegyasu
Gupta et al. (using in-house clinical MRI mimicking laboratory setup) on Improving Signal-to-Noise Ratio of 1.5T
MRI Scans using High-Q Resonators based on Coupled Octa-spirals is
accepted in the Advanced Theory and Simulations
Journal (part of the prestigious Wiley
Advanced portfolio). Dr.
Debabrata Sikdar has been selected as one of the Emerging Leaders 2023 from the young
researchers across the globe nominated by the prestigious Journal of Physics: Condensed Matter
from IOP Publishing [Article]
Our recent research work on Improving SNR of 1.5T MRI using Flexible Magnetic Metasurfaces
based on Rectangular Windings has been accepted in the esteemed International
Conference on Numerical Simulation on
Optoelectronic Devices (NUSOD) 2024. Our recent research work on Magneto-active Metamaterials for 1.5T MRI: An Intelligent Approach to
Boost the Signal-to-Noise Ratio of a Scan has been accepted in the
esteemed International Conference on
Numerical Simulation on Optoelectronic Devices (NUSOD) 2024. 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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