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Publications

A full list is available at Karan’s Google Scholar profile

Publications/preprints:

  • O. Jaramillo, V. Natarajan, H.M. Rivy, J. Tensuan, L. Massai, K.K. Mehta. “HfO2-based platform for high-index-contrast visible/UV integrated photonics.” arXiv:2412.09421 (2024) [link]
  • Z. Xing, K.K. Mehta. “Trapped-ion laser cooling in structured light fields.” arXiv:2411.08844 (2024) [link]
  • O. Smedley, V. Natarajan, O. Jaramillo, H.M. Rivy, K.K. Mehta. “Atomic fluorescence collection into planar photonic devices.” arXiv:2408.07068 (2024) [link]
  • C. Mordini, A.R. Vasquez, Y. Motohashi, M. Müller, M. Malinowski, C. Zhang, K.K. Mehta, D. Kienzler, J.P. Home. “Multi-zone trapped-ion qubit control in an integrated photonics QCCD device.” arxiv:2401.18056 (2024) [link]
  • G. Beck, J.P. Home, and K.K. Mehta. “Grating design methodology for tailored free-space beam-forming,” IEEE Journal of Lightwave Technology 42:14 (2024). [link]
  • A.A. Peshkov, E. Jordan, M. Kromrey, K.K. Mehta, and T.E. Mehlstäubler. “Excitation of forbidden electronic transitions in atoms by Hermite-Gaussian modes.” Annalen der Physik, 2300204 (2023). [link]
  • A.R. Vasquez, C. Mordini, C. Verniere, M. Stadler, M. Malinowski, C. Zhang, D. Kienzler, K.K. Mehta, and J.P. Home. “Control of an atomic quadrupole transition in a phase-stable standing wave.” Physical Review Letters 130, 133201 (2023). [link]
  • L. Massai, T. Schatteburg, J.P. Home, and K.K. Mehta. “Pure circularly polarized light emission from waveguide microring resonators.” Applied Physics Letters 121, 121101 (2022). [link] (Editor’s Pick)
  • M. Malinowski, C. Zhang, V. Negnevitsky, I. Rojkov, F. Reiter, T.-L. Nguyen, M. Stadler, D. Kienzler, K.K. Mehta, and J.P. Home. “Generation of a maximally entangled state using collective optical pumping.” Physical Review Letters 128, 080503 (2022). [link]
  • G. Moody, et al. “Roadmap on integrated quantum photonics.” IOP Photonics (2022). [link]
  • N.P. de Leon, K.M. Itoh, D. Kim, K.K. Mehta, T.E. Northup, H. Paik, B.S. Palmer, N. Samarth, S. Sangtawesin, and D.W. Steuerman. “Materials challenges and opportunities for quantum computing hardware.” Science 372, 6539 (2021). [link]
  • K. Mehta, C. Zhang, M. Malinowski, T.-L. Nguyen, M. Stadler, J.P. Home. “Integrated optical multi- ion quantum logic.” Nature 586, 533-537 (2020). [link]
  • C. Flühmann, T.-L. Nguyen, M. Marinelli, V. Negnevitsky, K. Mehta, and J.P. Home. “Encoding a qubit in a trapped-ion mechanical oscillator.” Nature 566, 513 (2019). [link]
  • G.N. West, W. Loh, D. Kharas, C. Sorace-Agaskar, K.K. Mehta, J. Sage, J. Chiaverini, and R.J. Ram. “Low-loss optical waveguides in the blue and ultraviolet regime.” APL Photonics 4:2, 026101 (2019). [link]
  • V. Negnevitsky, M. Marinelli, K. Mehta, H-Y Lo, C. Flümann, J.P. Home. “Repeated multi-qubit readout and feedback with a mixed-species trapped-ion register.” Nature 563:7732, 527 (2018). [link]
  • K. K. Mehta and R. J. Ram. “Precise and diffraction-limited waveguide-to-free-space focusing gratings.” Scientific Reports 7:2019 (2017). [link]
  • K. K. Mehta, Colin Bruzewicz, Robert McConnell, Jeremy M. Sage, John Chiaverini, and Rajeev J. Ram. “Integrated optical addressing of an ion qubit.” Nature Nanotechnology 11, 1066-1070 (2016). [link]
  • Amir H. Atabaki, Huaiyu Meng, Luca Alloatti, Karan K. Mehta, and Rajeev J. Ram. “High-speed polysilicon CMOS photodetector for telecom and datacom.” Applied Physics Letters 109:111106 (2016). [link]
  • Chen Sun, Michael Georgas, Jason Orcutt, Benjamin Moss, Yu-Hsin Chen, Jeffrey Shainline, Mark Wade, Karan Mehta, Kareem Nammari, Erman Timurdogan, Daniel Miller, Ofer Tehar-Zahav, Zvi Sternberg, Jonathan Leu, Johanna Chong, Reha Bafrali, Gurtej Sandhu, Michael Watts, Roy Meade, Milo ̆s Popovi ́c, Rajeev Ram, and Vladimir Stojanovic. “A monolithically-integrated chip-to-chip optical link in bulk CMOS.” IEEE Journal of Solid State Circuits 50:4, 828-844 (2015). [link]
  • K. K. Mehta, A.M. Eltony, Colin D. Bruzewicz, Isaac L. Chuang, Rajeev J. Ram, Jeremy M. Sage, and John Chiaverini. “Ion traps fabricated in a CMOS foundry.” Applied Physics Letters 105:044103 (2014). [link]
  • Karan K. Mehta, Jason S. Orcutt, Jeffrey Shainline, Ofer Tehar-Zahav, Zvi Sternberg, Roy Meade, Milos Popovic, and Rajeev J. Ram. “Polycrystalline silicon ring resonator photodiodes in a bulk CMOS process.” Optics Letters 39:4, 1061-1064 (2014). [link]
  • Karan K. Mehta, Jason S. Orcutt, Ofer Tehar-Zahav, Zvi Sternberg, Reha Bafrali, Roy Meade, and Rajeev J. Ram. “High-Q CMOS-integrated photonic crystal microcavity devices.” Scientific Reports 4:4077 (2014). [link]
  • Karan K. Mehta, Jason S. Orcutt, and Rajeev J. Ram. “Fano line shapes in transmission spectra of silicon photonic crystal resonators.” Applied Physics Letters 102:081109 (2013). [link]
  • Jason S. Orcutt, Sanh D. Tang, Steve Kramer, Karan Mehta, Hanqing Li, Vladimir Stojanovic, and Rajeev J. Ram. “Low-loss polysilicon waveguides fabricated in an emulated high-volume electronics process.” Optics Express 20:7, 7243-7254 (2012). [link]
  • Amir Ali Tavallaee, P. Hon, Karan Mehta, Tatsuo Itoh, and Benjamin S. Williams. “Zero-index terahertz quantum-cascade metamaterial lasers.” IEEE Journal of Quantum Electronics 46, no. 7, 1091-1098 (2010). [link]
  • Karan K. Mehta, Ting-Hsiang Wu, and Eric PY Chiou. “Magnetic nanowire-enhanced optomagnetic tweezers.” Applied Physics Letters 93.25, 4102 (2008). [link]