May 14 (Tue) @10am: "Nonlinear and Quantum Light Source Technologies in SiN PICs," Kartik Srinivasan, NIST/UMD Joint Quantum Inst.

Date and Time
Henley Hall (HH), Room 1010


Silicon nitride has become a widely used material for photonic integrated circuits (PICs), due to its broad optical transparency window, moderately high refractive index, widely accessible growth mechanism in silicon foundries, and ability to support low propagation losses. In this talk, I will discuss our lab’s efforts to realize different physical resources of relevance to quantum science in this PIC platform. In the first part, I will focus on classical light sources we are developing for use in optical atomic clocks and quantum sensors. These microresonator optical parametric oscillators [1], [2] and octave-spanning microresonator frequency combs [3] leverage the broadband, bulk nonlinearity of the silicon nitride material. I will then review how, with suitable modifications, similar underlying nonlinear resonator technology can also be used for generating entanglement distribution sources [4] and frequency converting quantum states of light [5]. Finally, I will discuss how heterogeneous integration of silicon nitride PICs with other materials, such as III-V epitaxial quantum dots [6] and alkali atomic vapors [7], can offer new resources such as on demand single-photon generation and strong resonant nonlinearity to the silicon nitride platform.


Kartik Srinivasan is a Fellow of the National Institute of Standards and Technology, a Fellow of the NIST/University of Maryland Joint Quantum Institute, and an Adjunct Professor of Physics at the University of Maryland. He received B.S., M.S., and Ph.D. degrees in Applied Physics from the California Institute of Technology before joining NIST in 2007. Kartik has published research on topics such as integrated quantum photonics, nonlinear nanophotonics, nanoscale electro-optomechanical transducers, and photonic crystals. He has received the Presidential Early Career Award for Scientists and Engineers and the Department of Commerce Bronze and Gold Medals and is a Fellow of Optica (formerly OSA). He is a Deputy Editor of the new journal Optica Quantum.

Hosted by: The UCSB Institute of Energy Efficiency and the ECE Photonics Society

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