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Special Seminar: Kartik Srinivasan, "Nanoscale Transducers for Photonic Quantum Information Science and Metrology"

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Special Seminar: Kartik Srinivasan, "Nanoscale Transducers for Photonic Quantum Information Science and Metrology"
When Feb 16, 2018
from 11:00 AM to 12:00 PM
Where CDI- CCNY , 4th Floor Seminar Room
Contact Name
Contact Phone 212-650-7443
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Special Seminar Friday, 16th February at 11:00 am
CDI- CCNY , 4th Floor Seminar Room

Nanoscale Transducers for Photonic Quantum Information Science and Metrology

Kartik Srinivasan
Center for Nanoscale Science and Technology
National Institute of Standards and Technology, Gaithersburg, MD, USA

Advances in nanofabrication technology have enabled the development of chip-scale geometries that control the propagation and confinement of light at the wavelength-scale.  Taken together with complementary advances in areas such as nanomechanics, there is great opportunity to create systems in which light-matter interactions are dramatically enhanced in comparison to bulk materials.  In this talk, I will present an overview of a number of chip-scale signal transducers, based on the engineering of optomechanical, nonlinear optical, and dipole interactions in nanoscale geometries.  The systems I will describe include a piezo-optomechanical circuit platform for realizing a coherent link between the RF and optical domains through acoustics, and silicon nitride optomechanical cavities used in Brownian motion thermometry calibrated by quantum noise.  The nonlinear optical Kerr effect is used to establish classical and quantum coherent links across the optical spectrum, through the creation of octave-spanning microresonator frequency combs, quantum light sources spanning the visible and telecommunications bands, and quantum frequency converters for efficient and low-noise transduction of quantum states.  Finally, I will discuss how we can use heterogeneous integration to introduce single quantum emitters based on InAs/GaAs quantum dots into this Kerr nonlinear platform.  

Biography:
Kartik Srinivasan is a Project Leader at the NIST Center for Nanoscale Science and Technology (CNST).  He received B.S., M.S., and Ph.D. degrees in Applied Physics from the California Institute of Technology, where his graduate research was supported by a Fannie and John Hertz Foundation Fellowship. At the CNST, he leads projects in the field of nanophotonics, with a current focus on topics in photonic quantum information science, nonlinear optics, and optical sensors.   He has been awarded the Presidential Early Career Award for Scientists and Engineers and is a Fellow of the Optical Society of America.