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physics.optics2023
Upconversion of infrared light by graphitic micro-particles due to photo-induced structural modification
Rohin Sharma, Nishma Bhattarai, Rijan Maharjan +3
Recent reports of upconversion and white light emission from graphitic particles warrant an explanation of the physics behind the process. We offer a model, wherein the upconversio…
physics.optics2022
Determining size of an optically trapped particle via modulated Raman spectroscopy
Rohin Sharma, Anusa Thapa, Rijan Maharjan +1
The average Raman signal power obtained in a modulated optical trap is dependent on the Brownian motion - therefore hydrodynamic properties of the trapped particle. Hence, in addit…