Text Box: Sikdar Nanophotonics and Metamaterial Research Group
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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.



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








Recent Publications


T. Bhowmik, and D. Sikdar, Parallel Directional Coupler based Dual-Polarization Electro-Absorption Modulator using Epsilon Near-Zero Material, Journal of Physics D: Applied Physics, December 2021. (Just Accepted) [Online]


A. K. Chowdhary and D. Sikdar, Multilayer thin-film based nanophotonic windows: static versus electrotunable design, Journal of Optics, November 2021. (Just Accepted) [Online]


Q. Shi, Z. Yong, Md H. Uddin, R. Fu, D. Sikdar, L. Wei Yap, B. Fan, Y. Liu, D. Dong, W. Cheng, Cell Sheet-like Soft Nanoreactor Arrays, Advanced Materials, 2021 (Just Accepted). [Online]


A. K. Chowdhary, V. A. Reddy, and D. Sikdar, Selective Thermal Emitters for High-performance All-day Radiative Cooling, Journal of Physics D: Applied Physics, 2021 (Just Accepted). [Online]


A. K. Chowdhary and D. Sikdar, Design of electrotunable all-weather smart windows, Sol. Energy Mater. Sol. Cells, vol. 222, pp. 110921, 2021. [Online]


A. K. Chowdhary, T. Bhowmik, J. Gupta, and D. Sikdar, Energy-saving all-weather window based on selective filtering of solar spectral radiation, Appl. Opt., vol. 60, pp. 1315-1325, 2021. [Online]


T. Bhowmik, A. Kumar, A. K. Chowdhary and D. Sikdar, Polarization-insensitive Electro-tunable Broadband Plasmonic Metamaterial Absorber for Amplitude Modulation15th International Congress on Artificial Materials for Novel Wave Phenomena (IEEE Metamaterials 2021), New York, USA2021. [Online]


A. K. Chowdhary, V. A. Reddy, T. Bhowmik, and D. Sikdar, Spectrally Selective Nanophotonic Windows for Aiding Photosynthesis in Greenhouses, IEEE Photonics Conference (IPC), 2021, Vancouver, Canada. [Online].





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]


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]


Our recently published work in Solar Energy Materials and Solar Cells (Impact Factor: 6.984) got shortlisted for highlighting in a news report published in current science on 10th May 2021. [Link]


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.





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 2021 [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