The CHIME Center

Han Htoon

Han Htoon is a scientist (Level 5) at the Center for Integrated Nanotechnologies, Los Alamos National Laboratory. He has led multiple LDRD, DOE BES, NNSA MSIPP, and NIH projects as PI or Co-PI level and managed ~$ 20M of research funding over past 10 year period. He was recently awarded LANL Fellow research prize (2019) and selected as the fellow of American Physical Society (2017) for the research accomplishments in elucidating optical properties and electronic structures of quantum dots and single wall carbon nanotubes, development of novel, single nanostructure, optical spectroscopy/imaging techniques, and device integration of optical nanomaterials. Han Htoon have authored more than 160 peer reviewed publications that include 14 Nature family Journals, 16 Nano Lett., 20 ACS Nano and 11 Phys. Rev. Lett. He earned an h-index of 56 and cited more than 12,500 times. Some of his recent noteworthy accomplishments include: (1) Development of in situ optical feedback for high-yield deterministic implantation of quantum defects (2) demonstration of three new types of 2D quantum light emitters capable of operating in technologically important telecommunication bands and (3) Realization of chiral quantum light emitters via localization of magnetic proximity interaction in strain engineered WSe2/NiPS3 heterostructures.

Email: htoon@lanl.gov

Expertise

Low temperature single nanostructure optical spectroscopy (PL, PLE and time resolved PL), magneto-optical spectroscopy, scanning photo current microscopy/spectroscopy, scanning confocal Raman microscopy, photonic/plasmonic integration, design and fabrication of LED and photo detectors.

Orchid/Research Gate/Google Scholar Links

Highlighted Publications/Current Research

Zhao, H.; Zhu, L.; Li, X.; Chandrasekaran, V.; Baldwin, J. K.; Pettes, M. T.; Piryatinski, A.; Yang, L.; Htoon, H. Manipulating Interlayer Excitons for Near-Infrared Quantum Light Generation. Nano Letters 23, 11006-11012 (2023).
Li, X.; Jones, A. C.; Choi, J.; Zhao, H.; Chandrasekaran, V.; Pettes, M. T.; Piryatinski, A.; Tschudin, M. A.; Reiser, P.; Broadway, D. A.; Maletinsky, P.; Sinitsyn, N.; Crooker, S. A.; Htoon, H. Proximity-induced chiral quantum light generation in strain-engineered WSe2/NiPS3 heterostructures. Nature Materials 22, 1311-1316 (2023).
Zhao, H., Pettes, M. T., Zheng, Y. & Htoon, H. Site-controlled telecom-wavelength single-photon emitters in atomically-thin MoTe2. Nature Communications 12, 1-7 (2021).
Kim, Y., Goupalov, S. V., Weight, B. M., Gifford, B. J., He, X., Saha, …, Tretiak, S., Doorn, S. K. & Htoon, H. Hidden Fine Structure of Quantum Defects Revealed by Single Carbon Nanotube Magneto-Photoluminescence. ACS Nano 14, 3451-3460 (2020).
Luo, Y., He, X., Kim, Y., Blackburn, J. L., Doorn, S. K., Htoon, H. & Strauf, S. Carbon nanotube color centers in plasmonic nanocavities: A path to photon indistinguishability at telecom bands. Nano Letters, 19, 9037-9044, (2019).
He, X., Htoon, H., Doorn, S. K., Pernice, W. H. P., Pyatkov, F., Krupke, R., Jeantet, A., Chassagneux, Y. & Voisin, C. Carbon nanotubes as emerging quantum-light sources. Nature Materials 17, 663-670, (2018).
He, X., Hartmann, N. F., Ma, X., Kim, Y., Ihly, R., Blackburn, J. L., Gao, W., Kono, J., Yomogida, Y., Hirano, A., Tanaka, T., Kataura, H., Htoon, H. & Doorn, S. K. Tunable room-Temperature single-photon emission at telecom wavelengths from sp 3 defects in carbon nanotubes. Nature Photonics 11, 577-582, (2017).
He, X., Gifford, B. J., Hartmann, N. F., Ihly, R., Ma, X., Kilina, S. V., Luo, Y., Shayan, K., Strauf, S., Blackburn, J. L., Tretiak, S., Doorn, S. K. & Htoon, H. Low-Temperature Single Carbon Nanotube Spectroscopy of sp3 Quantum Defects. ACS Nano 11, 10785-10796, (2017).
Ma, X., Hartmann, N. F., Baldwin, J. K. S., Doorn, S. K. & Htoon, H. Room-temperature single-photon generation from solitary dopants of carbon nanotubes. Nature Nanotechnology 10, 671-675, (2015).
Galland, C., Ghosh, Y., Steinbrück, A., Sykora, M., Hollingsworth, J. A., Klimov, V. I. & Htoon, H. Two types of luminescence blinking revealed by spectroelectrochemistry of single quantum dots. Nature479, 203-207, (2011).

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