Publications

Submitted
Alejandro R-P Montblanch, Dhiren M Kara, Ioannis Paradisanos, Carola M Purser, Matthew SG Feuer, Evgeny M Alexeev, Lucio Stefan, Ying Qin, Mark Blei, Gang Wang, Alisson R Cadore, Pawel Latawiec, Marko Lončar, Sefaattin Tongay, Andrea C Ferrari, and Mete Atatüre. Submitted. “Confinement of long-lived interlayer excitons in WS /WSe heterostructures.” arXiv. [PDF]
Benjamin Pingault, Bartholomeus Machielse, and Marko Loncar. Submitted. “Diamond Integrated Quantum Photonics (section 13 in Roadmap on Integrated Quantum Photonics).” arXiv. Publisher's Version [PDF]
Di Zhu, Linbo Shao, Mengjie Yu, Rebecca Cheng, Boris Desiatov, C. J. Xin, Yaowen Hu, Jeffrey Holzgrafe, Soumya Ghosh, Amirhassan Shams-Ansari, Eric Puma, Neil Sinclair, Christian Reimer, Mian Zhang, and Marko Lončar. Submitted. “Integrated photonics on thin-film lithium niobate.” arXiv:2102.11956. Publisher's VersionAbstract
Lithium niobate (LN), an outstanding and versatile material, has influenced our daily life for decades: from enabling high-speed optical communications that form the backbone of the Internet to realizing radio-frequency filtering used in our cell phones. This half-century-old material is currently embracing a revolution in thin-film LN integrated photonics. The success of manufacturing wafer-scale, high-quality, thin films of LN on insulator (LNOI), accompanied with breakthroughs in nanofabrication techniques, have made high-performance integrated nanophotonic components possible. With rapid development in the past few years, some of these thin-film LN devices, such as optical modulators and nonlinear wavelength converters, have already outperformed their legacy counterparts realized in bulk LN crystals. Furthermore, the nanophotonic integration enabled ultra-low-loss resonators in LN, which unlocked many novel applications such as optical frequency combs and quantum transducers. In this Review, we cover -- from basic principles to the state of the art -- the diverse aspects of integrated thin-film LN photonics, including the materials, basic passive components, and various active devices based on electro-optics, all-optical nonlinearities, and acousto-optics. We also identify challenges that this platform is currently facing and point out future opportunities. The field of integrated LNOI photonics is advancing rapidly and poised to make critical impacts on a broad range of applications in communication, signal processing, and quantum information.
LN_AOP_review.pdf
Stefan Krastanov, Hamza Raniwala, Jeffrey Holzgrafe, Kurt Jacobs, Marko Loncar, Matthew J. Reagor, and Dirk R. Englund. Submitted. “Optically-Heralded Entanglement of Superconducting Systems in Quantum Networks.” arXiv. [PDF]
Neil Sinclair and Marko Loncar. Submitted. “Quantum Photonics with Thin-Film Lithium Niobate Roadmap on Integrated (section 7 in Roadmap on Integrated Quantum Photonics).” arXiv. Publisher's Version [PDF]
Marc Jankowski, Carsten Langrock, Boris Desiatov, Marko Loncar, and MM Fejer. Submitted. “Supercontinuum Generation by Saturated Interactions.” arXiv:1912.06642. Publisher's VersionAbstract
We demonstrate a new approach to supercontinuum generation and carrier-envelope-offset detection in dispersion-engineered nanophotonic waveguides based on saturated second-harmonic generation of femtosecond pulses. In contrast with traditional approaches based on self-phase modulation, this technique simultaneously broadens both harmonics by generating rapid amplitude modulations of the field envelopes. The generated supercontinuum produces coherent carrier-envelope-offset beatnotes in the overlap region that remain in phase across 100’s of nanometers of bandwidth while requiring <10 picojoules of pulse energy.
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H. Atikian, N. Sinclair, P. Latawiec, X. Xiong, S. Meesala, S. Gauthier, D. Wintz, J. Randi, D. Bernot, S. DeFrances, J. Thomas, M. Roman, S. Durrant, F. Capasso, and M. Loncar. Submitted. “Diamond mirrors for high-power lasers.” arXiv:1909.06458. [PDF]
Linbo Shao, Di Zhu, Marco Colangelo, Dae Hun Lee, Neil Sinclair, Yaowen Hu, Peter T. Rakich, Keji Lai, Karl K. Berggren, and Marko Loncar. Submitted. “Electrical Control of Surface Acoustic Waves.” arXiv:2101.01626. Publisher's Version
Amirhassan Shams-Ansari, Mengjie Yu, Zaijun Chen, Christian Reimer, Mian Zhang, Nathalie Picqué, and Marko Lončar. Submitted. “An integrated lithium-niobate electro-optic platform for spectrally tailored dual-comb spectroscopy”. PreprintAbstract
A high-resolution broad-spectral-bandwidth spectrometer on a chip would create new opportunities for gas-phase molecular fingerprinting, especially in environmental sensing. A resolution high enough to observe transitions at atmospheric pressure and the simultaneous sensitive detection of multiple atoms or molecules are the key challenges. Here, an electro-optic microring-based dualcomb interferometer, fabricated on a low-loss lithium-niobate-on-insulator nanophotonic platform, demonstrates significant progress towards such an achievement. Spectra spanning 1.6 THz (53 cm-1) at a resolution of 10 GHz (0.33 cm-1) are obtained in a single measurement without requiring frequency scanning or moving parts. The frequency agility of the system enables spectrally-tailored multiplexed sensing, which allows for interrogation of non-adjacent spectral regions, here separated by 6.6 THz (220 cm-1), without compromising the signal-to-noise ratio.
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Keith Powell, Liwei Li, Amirhassan Shams-Ansari, Jianfu Wang, Debin Meng, Neil Sinclair, Jiangdong Deng, Marko Lončar, and Xiaoke Yi. Submitted. “Integrated silicon carbide modulator for CMOS photonics.” Research Square: 10.21203/rs.3.rs-178354/v1. [PDF]
R. J. Gelly, D. Renaud, X. Liao, B. Pingault, S. Bogdanovic, G. Scuri, K. Watanabe, T. Taniguchi, B. Urbaszek, H. Park, and M. Loncar. Submitted. “Probing dark exciton navigation through a local strain landscape in a WSe2 monolayer.” arXiv:2103.01064. [PDF]
Yaowen Hu, Mengjie Yu, Di Zhu, Neil Sinclair, Amirhassan Shams-Ansari, Linbo Shao, Jeffrey Holzgrafe, Eric Puma, Mian Zhang, and Marko Loncar. Submitted. “Reconfigurable electro-optic frequency shifter.” arXiv: 2005.09621. [PDF]
2021
Neil Sinclair, Daniel Oblak, Erhan Saglamyurek, Rufus L. Cone, Charles W. Thiel, and Wolfgang Tittel. 4/12/2021. “Optical coherence and energy-level properties of a Tm3+-doped LiNbO3 waveguide at subkelvin temperatures.” Physical Review B, 103, Pp. 134105. Publisher's Version
David Awschalom, Karl K. Berggren, Hannes Bernien, Sunil Bhave, Lincoln D. Carr, Paul Davids, Sophia E. Economou, Dirk Englund, Andrei Faraon, Marty Fejer, Saikat Guha, Martin V. Gustafsson, Evelyn Hu, Liang Jiang, Jungsang Kim, Boris Korzh, Prem Kumar, Paul G. Kwiat, Marko Lončar, Mikhail D. Lukin, David A. B. Miller, Christopher Monroe, Sae Woo Nam, Prineha Narang, Jason S. Orcutt, Michael G. Raymer, Amir H. Safavi-Naeini, Maria Spiropulu, Kartik Srinivasan, Shuo Sun, Jelena Vučković, Edo Waks, Ronald Walsworth, Andrew M. Weiner, and Zheshen Zhang. 2/24/2021. “Development of Quantum InterConnects (QuICs) for Next-Generation Information Technologies.” PRX Quantum, 2, Pp. 017002. Publisher's VersionAbstract
Just as “classical” information technology rests on a foundation built of interconnected information-processing systems, quantum information technology (QIT) must do the same. A critical component of such systems is the “interconnect,” a device or process that allows transfer of information between disparate physical media, for example, semiconductor electronics, individual atoms, light pulses in optical fiber, or microwave fields. While interconnects have been well engineered for decades in the realm of classical information technology, quantum interconnects (QuICs) present special challenges, as they must allow the transfer of fragile quantum states between different physical parts or degrees of freedom of the system. The diversity of QIT platforms (superconducting, atomic, solid-state color center, optical, etc.) that will form a “quantum internet” poses additional challenges. As quantum systems scale to larger size, the quantum interconnect bottleneck is imminent, and is emerging as a grand challenge for QIT. For these reasons, it is the position of the community represented by participants of the NSF workshop on “Quantum Interconnects” that accelerating QuIC research is crucial for sustained development of a national quantum science and technology program. Given the diversity of QIT platforms, materials used, applications, and infrastructure required, a convergent research program including partnership between academia, industry, and national laboratories is required.
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2020
Jeffrey Holzgrafe, Neil Sinclair, Di Zhu, Amirhassan Shams-Ansari, Marco Colangelo, Yaowen Hu, Mian Zhang, Karl K. Berggren, and Marko Lončar. 12/7/2020. “Cavity electro-optics in thin-film lithium niobate for efficient microwave-to-optical transduction.” Optica, 7, Pp. 1714. Publisher's Version [PDF]
Raju Valivarthi, Samantha I. Davis, Cristián Peña, Si Xie, Nikolai Lauk, Lautaro Narváez, Jason P. Allmaras, Andrew D. Beyer, Yewon Gim, Meraj Hussein, George Iskander, Hyunseong Linus Kim, Boris Korzh, Andrew Mueller, Mandy Rominsky, Matthew Shaw, Dawn Tang, Emma E. Wollman, Christoph Simon, Panagiotis Spentzouris, Daniel Oblak, Neil Sinclair, and Maria Spiropulu. 12/4/2020. “Teleportation Systems Towards a Quantum Internet.” PRX Quantum, 1, 020317. Publisher's Version
Cheng Wang, Mian Zhang, and Marko Loncar. 11/2020. “Chapter 1: High-Q Lithium Niobate Microcavities and Their Applications .” In Ultra-high-Q Optical Microcavities, Pp. 1-35. World Scientific. Publisher's VersionAbstract
Lithium niobate (LN) is an excellent nonlinear optical and electro-optic material that has found many applications in classical nonlinear optics, optical fiber communications and quantum photonics. Here we review the recent development of thin-film LN technology that has allowed the miniaturization of LN photonic devices and microcavities with ultra-high quality factors. We discuss the design principle of LN devices that makes use of the largest nonlinear coefficients, various device fabrication approaches and resulting device performances, and the current and potential applications of LN microcavities.
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Mohd Nuriman Nawi, Dilla Duryha Berhanuddin, Marko Loncar, Mohd Adzir Mahdi, Richard De La M Rue, and Ahmad Rifqi Md Zain. 10/12/2020. “Discrepancies in the free spectral range (FSR) of one-dimensional (1D) photonic crystal/photonic wire coupled-cavities .” Engineering Research Express, 2, 4, Pp. 045008. Publisher's Version [PDF]
Qixin Shen, Amirhassan Shams-Ansari, Andrew M. Boyce, Nathaniel C. Wilson, Tao Cai, Marko Loncar, and Maiken H. Mikkelsen. 9/28/2020. “A metasurface-based diamond frequency converter using plasmonic nanogap resonators.” Nanophotonics. Publisher's Version [PDF]
Lu Zheng, Linbo Shao, Marko Loncar, and Keji Lai. 9/8/2020. “Imaging Acoustic Waves by Microwave Microscopy: Microwave Impedance Microscopy for Visualizing Gigahertz Acoustic Waves.” IEEE Microwave Magazine, 21, Pp. 60. [PDF]

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