The field of materials science is currently experiencing a surge of interest in several materials that have been found to possess unique and promising properties. Among these materials are chalcogenide glasses, transition metal dichalcogenides (TMDCs), and quantum dots. Chalcogenide glasses, in particular, have been found to exhibit impressive optical nonlinearity and sub-picosecond response time, making them highly attractive for various applications. TMDCs, on the other hand, have been found to possess high electron mobility and strong light-matter interactions, which make them ideal for optoelectronic and photonic devices. Quantum dots, with their tunable optical and electronic properties, have been found to be particularly useful for applications such as quantum information technology, quantum optics and solar cells, LEDs. Our research group at IISER Bhopal is exploring the properties of these materials and finding ways to enhance their performance for various applications. We are excited to be at the forefront of this exciting field and look forward to seeing what the future holds for these materials.
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Nonlinear Optics: Ultrafast effects in semiconductors, optical control of multi-photon absorption, Electro-optic effects, Generation and modulation of Terahertz radiation, Supercontinuum generation in photonic crystal fibers; Ensembles of interacting solitons; Modulation instability in optical fibers; Soliton lasers.
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Condensed Matter Physics: Nano-structuring in chalcogen / chalcogenide and metal / chalcogenide multilayers; Quantum size effects and tunability of optical parameters in amorphous semiconductors.
Ongoing Projects
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Engineering large area transition metal di-chalcogenide (MS2) nano-sheets using pulsed laser deposition for 2D-photonic applications. (UKIERI-UGC, 2018-2020)
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Unravelling ultrafast exciton-plasmon coupling in Au/ Ag nanostructures on 2D few-layer Mo(W) S2 nanosheets for photonic device applications. (SERB, 2017-2020)
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Tuning the ultrafast nonlinear optical and magnetic properties of transition metal dichalcogenide heterostructures as a function of interlayer coupling strength: Photonic device applications. (DAE-BRNS, 2016-2019)
Completed Projects
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Photodarkening in amorphous chalcogenide thin films and finding its strong dependency on composition temperature and intensity of illumination. (CSIR, 2013-2016)
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Controlling Enhancing And Turning The Optical And Nonlinear Properties Of Chalcogenide Glasses And Single Molecule Chalcogen Containing Macrocycles. (DST, 2012-2015)