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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


Ultra-low loss quantum photonic circuits integrated with single quantum emitters

Ashish Chanana, Hugo Larocque, Renan Moreira, Jacques Carolan, Biswarup Guha, Emerson Goncalves De Melo, Vikas Anant, Jin Dong Song, Dirk Englund, Daniel Blumenthal, Marcelo Davanco, Kartik Srinivasan
Photon-based photonic quantum information systems require both scalable ultra-low loss photonic circuits and high-flux sources of single-photons. Direct

Patents (2018-Present)


NIST Inventors
Kartik Srinivasan and Edgar Perez
A barcoded end facet printed photonic chip includes: an optically transparent direct laser writing substrate including a transverse waveguide writing surface to receive a direct write laser light for off-axis direct write laser printing and a facet surface to receive the direct write laser light for


NIST Inventors
Scott Papp , David Carlson and Kartik Srinivasan
Integrated photonics that enable nonlinear optical processes are important for numerous applications, including precision metrology; microresonator frequency comb generation; optical signal generation and processing; sensing, positioning, and navigation; and generation and manipulation of quantum
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
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, cannot provide sufficient control over the degree, location and direction of optical
Created July 30, 2019, Updated December 8, 2022