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Andrei Piryatinski
Andrei Piryatinski
Andrei Piryatinski received his Ph.D. in Physics from the University of Toledo (USA) in 1997. From 1998 to 2002, he was subsequently postdoctoral research fellow at the University of Rochester and the University of Wisconsin–Madison. In 2002, Dr. Piryatinski joined the Theoretical Division at Los Alamos National Laboratory (LANL) as a postdoctoral fellow with the Center for Nonlinear Studies (CNLS), and thereafter, he transitioned to a technical staff scientist position. For over two decades, he has served as a staff scientist in the Condensed Matter and Quantum Physics group within the LANL Theoretical Division. In addition, Dr. Piryatinski is an affiliated scientist with the Center for Integrated Nanotechnologies (CINT) and holds an adjunct professorship in the Department of Physics at the University of New Mexico.
Email: apiryat@lanl.gov
Expertise
Expertise
Theoretical quantum and classical nanophotonics/nanoplasmonics, theory of open quantum systems, photoexcited processes in semiconductor nanostructures and quantum materials.
Orchid/Research Gate/Google Scholar Links
Orchid/Research Gate/Google Scholar Links
Highlighted Publications/Current Research
Highlighted Publications/Current Research
V. Chandrasekaran, C. R. DeLaney, D. Parobek, C. A. Lane, J.-X. Zhu, X. Li, H. Zhao, C. T. Trinh, M. A. Campbell, A. C. Jones, M. M. Schneider, J. Watt, M. T. Pettes, S. A. Ivanov, A. Piryatinski, D. H. Dunlap, H. Htoon, Correlated excitonic signatures in a nanoscale van der Waals antiferromagnet Nanoscale Horizons 10, 150-157 (2025). https://doi.org/10.1039/d4nh00390j
B. Tyagi, H. Li, E. R. Bittner, A. Piryatinski, C. Silva-Acuna, A quantum analog of Huygen’s clock: noise-induced synchronization, J. Phys. Chem. Lett. 15 10896 (2024). https://doi.org/10.1021/acs.jpclett.4c02313
M. R. Clark, S. A. Shah A. Piryatinski, M. Sukharev, Harnessing complexity: nonlinear optical phenomena in L-shapes, nanocrescents, and split-ring resonators, J. Chem. Phys. 161 104107, (2024). https://doi.org/10.1063/5.0220079
S. A. Shah, M. R. Clark, J. Zyss, M. Sukharev, A. Piryatinski, Interplay of gain and loss in arrays of nonlinear plasmonic nanoparticles: toward parametric down-conversion and amplification, Optics Lett. 49 1680, (2024). https://doi.org/10.1364/OL.515621
H. Zhao, L. Zhu, M. Pettes, X. Li, V. Chandrasekaran, J. K. S. Baldwin, A. Piryatinski, L. Yang, H. Htoon, Manipulating interlayer excitons of MoS2/WSe2 heterostructures for ultra-pure quantum light generation. Nano Lett. 23, 11006 (2023). https://doi.org/10.1021/acs.nanolett.3c03296
X. Li, A. C. Jones, J. Choi, H. Zhao, V. Chandrasekaran, M. Pettes, A. Piryatinski, N. Sinitsyn, S. A. Crooker, H. Htoon, Proximity Induced Chiral Quantum Light Generation in Strain-Engineered WSe2/NiPS3 Heterostructures,Nature Materials 22, 1311 (2023). https://doi.org/10.1038/s41563-023-01645-7
A. Piryatinski, M. Sukharev, Degenerate parametric down-conversion facilitated by exciton-plasmon polariton states in nonlinear plasmonic cavity. Special issue: Focus on U.S. Department of Energy’s Nanoscale Science Research Centers. Nanotechnology 34, 175001 (2023). https://doi.org/10.1088/1361-6528/acb5a8
E. A. Dolgopolova, D. Li, J. Watt, C. Ríos, J. Hu, R. Kukkadapu, J. Casson, R. Bose, A. Malko, A. V. Blake, S. Ivanov, O. Roslyak, A. Piryatinski, H. Htoon, H.-T. Chen, G. Pilania, J. A. Hollingsworth, Spinel Fe3O4nanocrystals with size-tunable plasmonic properties afford strong enhancement of emission at telecom wavelength. Nanoscale Horizons 7, 267 (2022) https://doi.org/10.1039/D1NH00497B .
Y. Zheng, Y. Kim, A. C. Jones, G. Olinger, E. R. Bittner, S. M. Bachilo, S. K. Doorn, R. B. Weisman, A. Piryatinski, H. Htoon, Quantum light emission from coupled defect-states in DNA-functionalized carbon nanotubes.ACS Nano 15, 10406 (2021). https://doi.org/10.1021/acsnano.1c02709
M. Sukharev, O. Roslyak, A. Piryatinski, Second-harmonic generation in nonlinear plasmonic lattices enhanced by quantum emitter gain medium, J. Chem. Phys. 154, 084703 (2021). Special topic on polariton chemistry: Molecules in cavities and plasmonic media. https://doi.org/10.1063/5.0037453
S. Krishnamurthy, A. Singh, Z. Hu, Y. Kim, A. V. Blake, A. Singh, E. Dolgopolova, A. Piryatinski, A. V. Malko, H. Htoon, M. Sykora, J. A. Hollingsworth, PbS/CdS Quantum Dot Room-Temperature Single-Photon Emitters Reach the Telecom O and S Bands, ACS Nano 15 575 (2021). https://doi.org/10.1021/acsnano.0c05907
A. Piryatinski, O. Roslyak, H. Li, E. R. Bittner, Non-equilibrium states of plasmonic Dicke model with coherent and dissipative surface-plasmon-quantum-emitter interactions, Phys. Rev. Research 2, 013141 (2020). https://doi.org/10.1103/PhysRevResearch.2.013141
C. Sun, V. Y. Chernyak, A. Piryatinski, N. A. Sinitsyn, Cooperative light emission in the presence of strong inhomogeneous broadening, Phys. Rev. Lett. 123, 123605 (2019). https://doi.org/10.1103/PhysRevLett.123.123605
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