Abstract
The authors show how chiral exceptional surfaces can be used to tune the spontaneous emission rate from a single quantum emitter inside an optical microcavity, from total suppression to a two fold enhancement compared to a similar cavity operating at a diabolic point.
Highlights
Quantum engineering seeks to utilize quantum mechanics to build a new generation of computing machines, encryption schemes, and sensing devices with unprecedented performance in terms of computational power, security strength, and sensitivity, among other applications
This progress was enabled by engineering various optical resonator geometries that can support small modal volumes and large quality factors to tailor the photonic local density of states (PLDOS) surrounding quantum emitters (QE), controlling their spontaneous emission (SE) rates as quantified by the Purcell factor (PF) [8]
Here, we study the interaction between light and a QE in a family of microring resonators whose design is tailored to operate in the vicinity of or at a special type of non-Hermitian singularities known as chiral exceptional points (EPs)
Summary
Quantum engineering seeks to utilize quantum mechanics to build a new generation of computing machines, encryption schemes, and sensing devices with unprecedented performance in terms of computational power, security strength, and sensitivity, among other applications. At the heart of modern quantum optics technology is the ability to control light-matter interaction at the quantum level for various applications such as building nonclassical light sources [4], optical transistors [5], and quantum memory [6] In this regard, efforts have been recently dedicated to building efficient single photon sources that can produce individual photons on demand at high repetition rates [7]. It will be of interest to devise new routes for controlling SE in microring resonators and possibly enhance their PF beyond their current performance Motivated by this goal, here, we study the interaction between light and a QE in a family of microring resonators whose design is tailored to operate in the vicinity of or at a special type of non-Hermitian singularities known as chiral exceptional points (EPs). This geometry offers several advantages in terms of controlling PF [by suppressing it completely or enhancing its value by a factor of two compared with microring resonators operating at diabolic points (DPs)] and integration with a waveguide to collect the emitted photons from a predetermined port
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
