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SUMMARY:Nonlinear and Quantum Technologies in Silicon Nitride Photonic Int
 egrated Circuits - Dr Kartik Srinivasan 
DTSTART:20240913T130000Z
DTEND:20240913T140000Z
UID:TALK219838@talks.cam.ac.uk
CONTACT:111806
DESCRIPTION:Abstract\nSilicon nitride has become a widely used material fo
 r photonic integrated circuits (PICs)\, due to its broad optical transpare
 ncy window\, moderately high refractive index\, widely accessible growth m
 echanism in silicon foundries\, and ability to support low propagation los
 ses. In this talk\, I will discuss our labs efforts to realize different p
 hysical resources of relevance to quantum science in this PIC platform. In
  the first part of my talk\, I will focus on classical light sources we ar
 e developing for use in optical atomic clocks and quantum sensors. These m
 icroresonator optical parametric oscillators [1]\, [2] and octave-spanning
  microresonator frequency combs [3] leverage the broadband\, bulk nonlinea
 rity of the silicon nitride material itself. I will then review how\, with
  suitable modifications\, similar underlying nonlinear resonator technolog
 y can also be used for generating [4] and frequency converting quantum sta
 tes of light [5]. In the final part of my talk\, I will discuss how hetero
 geneous integration of the silicon nitride PICs with other materials\, suc
 h as III-V epitaxial quantum dots [6] and alkali atomic vapors [7]\, can o
 ffer new resources such as on-demand single-photon generation and strong r
 esonant nonlinearity to the silicon nitride platform. \n
LOCATION:Maxwell Centre\, Rayleigh Seminar Room
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