Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Kartik Srinivasan (Fed)

Kartik Srinivasan is a Project Leader and NIST Fellow in the Photonics and Optomechanics Group in the Physical Measurement Laboratory and a Fellow of the Joint Quantum Institute. 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. Kartik has published over 100 peer-reviewed papers on topics including integrated quantum photonics, quantum frequency conversion, nonlinear nanophotonics, nanoscale electro-optomechanical transducers, photonic crystals, and microresonator frequency combs. He has been awarded the NIST Sigma Xi Young Scientist Award for 2011, the Presidential Early Career Award for Scientists and Engineers (PECASE), and the Department of Commerce Bronze Medal. He is a Fellow of the OSA.

His laboratory’s website provides more details on his latest research activities in integrated quantum photonics, nonlinear nanophotonics, and nanoscale electro-optomechanical transducers.

Selected Publications

  • Efficient telecom-to-visible spectral translation through ultralow power nonlinear nanophotonics, X. Lu, G. Moille, Q. Li, D.A. Westly, A. Singh, A. Rao, S.-P. Yu, T.C. Briles, S.B. Papp, and K. Srinivasan, Nature Photonics 13, 593-601 (2019)
    NIST Publication Database        Journal Web Site
  • Chip-integrated visible-telecom entangled photon pair source for quantum communication, X. Lu, Q. Li, D.A. Westly, G. Moille, A. Singh, V. Anant, and K. Srinivasan, Nature Physics 15, 373-381 (2019)
    NIST Publication Database        Journal Web Site
  • Heterogeneous integration for on-chip quantum photonic circuits with single quantum dot devices, M. Davanco, J. Liu, L. Sapienza, C.-Z. Chang, J. Cardoso, V.B. Verma, R.P. Mirin, S.W. Nam, L. Liu, and K. Srinivasan, Nature Communications 8:889 (2017)
    NIST Publication Database        Journal Web Site
  • Optomechanical quantum correlations at room temperature, T.P. Purdy, K.E. Grutter, K. Srinivasan, and J. Taylor, Science, 356, 1265-1268 (2017).
    NIST Publication Database        Journal Web Site
  • Stably accessing octave-spanning microresonator frequency combs in the soliton regime, Q. Li, T.C. Briles, D.A. Westly, T.E. Drake, J.R. Stone, B.R. Ilic, S.A. Diddams, S.B. Papp, and K. Srinivasan, Optica, 4(2), 193-203 (2017).
    NIST Publication Database        Journal Web Site
  • Efficient and low-noise single-photon-level frequency conversion interfaces using silicon nanophotonics, Q. Li, M. Davanço, and K. Srinivasan, Nature Photonics 10, 406–414 (2016).
    NIST Publication Database        Journal Web Site
  • Coherent coupling between radiofrequency, optical and acoustic waves in piezo-optomechanical circuits, K. C. Balram, M. I. Davanço, J. D. Song, and K. Srinivasan, Nature Photonics 10, 346–352 (2016).
    NIST Publication Database        Journal Web Site
  • Nanoscale optical positioning of single quantum dots for bright and pure single-photon emission, L. Sapienza, M. Davanço, A. Badolato, and K. Srinivasan, Nature Communications 6: 7833 (2015).
    NIST Publication Database        Journal Web Site
  • Manipulating the color and shape of single photons, M. G. Raymer and K. Srinivasan, Physics Today 65, 32–37 (2012).
    NIST Publication Database        Journal Web Site
  • Quantum transduction of telecommunications-band single photons from a quantum dot by frequency upconversion, M. T. Rakher, L. Ma, O. Slattery, X. Tang, and K. Srinivasan, Nature Photonics 4, 786-791 (2010).
    NIST Publication Database        Journal Web Site


Topological Frequency Combs and Nested Temporal Solitons

Sunil Mittal, Gregory Moille, Kartik Srinivasan, Yanne Chembo, Mohammad Hafezi
Recent advances in realizing optical frequency combs using nonlinear parametric processes in integrated photonic resonators have revolutionized on-chip optical

Purcell–enhanced single photon source based on a deterministically placed WSe2 monolayer quantum dot in a circular Bragg grating cavity

Oliver Iff, Quirin Buchinger, Magdalena Moczala-Dusanowska, Martin Kamp, Simon Betzold, Marcelo I. Davanco, Kartik Srinivasan, Sefaattin Tongay, Carlos Anton-Solanas, Sven Hofling, Christian Schneider
We demonstrate a deterministic Purcell-enhanced single-photon source realized by integrating an atomically thin WSe2 layer with a circular Bragg grating cavity


The figure shows a microfabricated optical probe with the following components: 110 - optical loop, 111 – structured region of 110, 114 – optical waveguide, 116 – first arm of optical  waveguide, 120 – substrate, 122 – optical cladding layer, 124 – first single mode optical fiber, 126 – primary light, and 128 – output light.

Microfabricated Optical Probe

NIST Inventors
Vladimir Aksyuk and Kartik Srinivasan
Patent Description Integrated photonics research and manufacturing requires a probe for in-line nondestructive optical testing of devices. Current optical probes require dedicated and large coupling areas in the photonic circuit. They cannot provide sufficient control over the degree, location and
Created July 30, 2019, Updated June 25, 2021