Kritika Jain

Kritika Jain
Okinawa Institute of Science and Technology | OIST · Quantum Systems Unit

Doctor of Philosophy

About

6
Publications
374
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10
Citations
Additional affiliations
December 2021 - present
Okinawa Institute of Science and Technology
Position
  • PostDoc Position
Description
  • Nano fibers
Education
August 2015 - July 2021
Indian Institute of Science
Field of study
  • Computational and theoretical Physics - Quantum Optics)

Publications

Publications (6)
Article
Full-text available
It is known that the more tractable Markovian models of coupling suited for weak interactions may overestimate the Rabi frequency notably when applied to the strong-coupling regime. Here, a more significant consequence of the non-Markovian interaction between a photon emitter and dissipating matter such as resonant plasmonic nanoparticles is describ...
Preprint
Full-text available
It is known that the more tractable Markovian models of coupling suited for weak interactions may overestimate the Rabi frequency significantly, and alter the total decay rate marginally, when applied to the strong-coupling regime. Here we describe a more significant consequence of the non-Markovian interaction between a photon emitter and dissipat...
Preprint
Full-text available
The modified density of optical states due to a weak coupling with external cavities or other resonant matter (Purcell effect), can also be recast as the effect of coherent superposition of the classical paths of the photon. When the coupling is stronger, the quantum interference of additional paths representing the possible re-absorption of the ph...
Article
The Purcell effect has been the basis for several decades in understanding enhancement of photonic efficiency and decay rates of emitters through their coupling to cavity modes and metal nanostructures. However, it is not clear whether this regime of radiative enhancements can be extended to ultrasmall nanoparticle sizes or interparticle distances....
Article
Full-text available
This work shows that, counterintuitively, adding extremely small (<10 nm in dimension) fully absorbing metal nanoparticles to a material can notably enhance its light emission. It also shows that the mystery behind the unexpected large enhancements in surface-enhanced Raman spectroscopy, even greater than a factor of 1010, is the tunneling out of p...

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