Rishi MAITI

OPTICAL SENSORS BASED ON GRAPHENE HYBRID NANOSTRUCTURES

Graphene has attracted considerable research interest to sensing-related applications owing to its extraordinary electronic, optical, chemical, and mechanical properties. graphene’s ability to support surface plasmon-polaritons with extremely small mode volumes in the infrared and terahertz spectral regime renders it an ideal platform for strongly enhanced light–matter interactions at deeply subwavelength size scales. Together with its large bandwidth of operation, as well as intrinsic chemical stability and affinity to organic molecules, graphene serves as a natural candidate for numerous optics-based sensing applications. On the other hand, graphene can be utilized to tune the plasmonic properties of conventional metallic nanostructures in the visible and near-infrared regions, allowing it to act as a versatile component in various plasmonic applications. We particularly emphasize on the unique roles and advantages of graphene in surface-enhanced Raman scattering (SERS) for bare graphene or graphene-metal hybrid films, and plasmonic refractive index (RI) sensing for graphene-metal or graphene-insulator hybrids, among other plasmonic sensing applications.

 
STUDIES ON THE OPTOELECTRONIC DEVICE APPLICATIONS BASED ON GRAPHENE HYBRID NANOSTRUCTURES

This project is mainly on how to enhance the light-matter interaction of graphene since the absorption of graphene is less and it is also a zero band gap materials. So the idea is to couple more light to graphene and also to get the selectivity in the photodetection by opening the band gap.


Curriculum: Physical Sciences for Engineering

Tutor: Camilla BARATTOGiorgio SBERVEGLIERI

email: r.maiti@studenti.unibs.it

 

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