Yehuda Braiman

Research Professor of Optics & Photonics, and Electrical & Computer Engineering

CREOL A240

Biography

Dr. Yehuda Braiman is Research Professor at The College of Photonics and Optics and Department of Electrical and Computer Engineering at the University of Central Florida started January 2020. He is also an Adjunct Professor at the Department of Mechanical, Aerospace, and Biomedical Engineering at the University of Tennessee. Prior to his appointment at UCF, Dr. Braiman held an appointment of a Distinguished R&D Scientist at Computational Sciences and Engineering Division, Oak Ridge National Laboratory and Joint Faculty Professor at Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee.

Research Interests

Dr. Braiman’s research interests cover multiple disciplines including lasers and optics, dynamics of Josephson junctions and Josephson junction arrays, nonlinear dynamics and chaos control, friction and fracture at the atomistic scale, and detection of weak signals in noisy environment. Specific applications include beam combining and phase-locking of high-power, broad-area semiconductor diode arrays, studying the dynamics and formation of ultrafast pulses in semiconductor diodes, design of cryogenic memory based on small arrays of Josephson junctions, and studying effects of very weak perturbations on noisy extended nonlinear systems. He co-authored 57 journal papers, 17 refereed conference papers, and 8 book chapters, edited one book, and co-authored 4 patents. Some of Dr. Braiman’s research accomplishments include (1) discovery of chaos in Josephson junctions (with E. Ben Jacob and Y. Imry); (2) devised a method to control chaos (with I. Goldhirsch, Physical Review Letters article cited more close to 600 times according to Google Scholar); and (3) proposed a method to eliminate spatiotemporal chaos by introducing spatial disorder (article highlighted on the cover page of Nature and in Nature News & Views, (Taming Spatiotempoal Chaos with Disorder, with W. L. Ditto and J. F. Lindner, article cited more than 250 times according to Google Scholar). Most recently, Dr. Braiman in collaboration with N. Nair, J. Rezac, R. Glowinski, and N. Imam proposed design for cryogenic memory cell. In the proposed design all the basic memory operations are implemented on the same circuit and it has a potential to substantially reduce memory access time dissipation energy and reduce memory cell size. This design has been published in Superconductor Science and Technology and paper was selected for a Superconductor Science and Technology 2016 Highlight Collection.

Honors & Awards

1995 Paper was selected for a cover page of Nature.
2000 Award for outstanding technical achievement, UT-Battelle, LLC
2009 Significant Event Award, UT-Battelle, LLC
2013 Significant Event Award, UT-Battelle, LLC
2013 R&D 100 Award
2016 Paper selected for a Superconductor Science and Technology 2016 Highlight Collection
2016 Significant Event Award, UT-Battelle, LLC
2019 APS Outstanding Referee Award

Professional Activities

Member of APS and OSA. Refereed paper for Physical Review Letters and Physical Review, Europhysics Letters, Optics Communications, Optics Express, Optics Letters, Applied Optics, Chaos, IEEE Journal of Photonics, Journal of Physics Condensed Matter Physics, Physics Letters A. Co-organized multiple major international conferences/workshops in the fields of nonlinear dynamics and tribology and chaired sessions in professional national and international meetings.

Scientists

Students

Publications

R. Glowinski, J. Lopez, H, Juarez, and Y. Braiman "On the Controllability of Transitions Between Equilibrium States in Small Inductively Coupled Arrays of Josephson Junctions: A Computational Approach" Journal of Computational Physics 403, 109023 (2020)

N. Nair, E. Bochove, and Y. Braiman "Almost perfect in-phase and anti-phase chaotic and periodic phase synchronization in large arrays of diode lasers" Optics Communications 430, pp.104 (2019)

N. Nair, A. Jafari-Salim, A.N. D’Addario, N. Imam, and Y. Braiman "Experimental demonstration of a Josephson cryogenic memory cell based on coupled Josephson junction arrays" Superconductor Science and Technology 32, 115012 (2019)

N. Nair and Y. Braiman "A Ternary Memory Cell Using Small Josephson Junction Arrays" Superconductor Science and Technology 31, 115012 (2018)

B. Liu and Y. Braiman "Coherent Addition of High-Power Broad-Area Laser Diodes with a Compact VBG V-shaped External Talbot Cavity" Optics Communications 414, 202 (2018)

N. Nair, E. Bochove, and Y. Braiman "Phase-Locking of Arrays of Weakly Coupled Semiconductor Lasers" Optics Express 26, 20040 (2018) (2018)

J. Rezac, N. Imam, and Y. Braiman "Parameter Optimization for Transitions between Memory States in Small Arrays of Josephson Junctions" Physica A 474, 267 (2017)

Y. Braiman, N. Nair, J. Rezac, and N. Imam "Memory Cell Operation Based on Small Josephson Junction Arrays" Superconductor Science and Technology 129, 124003 (2016)

Y. Braiman, N. Neschke, N. Nair, N. Imam, and R. Glowinski "Memory States in Small Arrays of Josephson Junctions" Physical Review E 94, 052223 (2016)

B. Liu, Y. Braiman, N. Nair, Y. Lu, Y. Guo, P. Colet, and M. Wardlaw "Nonlinear Dynamics and Synchronization of an Array of Single Mode Laser Diodes in External Cavity Subject to Current Modulation" Optics Communications 324, 301 (2014)

B. Liu and Y. Braiman "Coherent Beam Combining of High Power Broad-Area Laser Diode Array with Near Diffraction Limited Beam Quality and High Power Conversion Efficiency" Optics Express 21, 31218 (2013)

B. Liu and Y. Braiman "Spectral Linewidth Narrowing and Tunable Two-Color Laser Operation of Two Diode Laser Arrays" Applied Optics 51, 1816 (2012)

Y. Guo, Z. Wang, Z. Qu, and Y. Braiman "Atomic-Scale Friction Control Using Friction Force Microscope" Control Engineering Practice 19, 1387 (2011)

E.J. Bochove, A.B. Aceves, Y. Braiman, P. Colet, R. Deiterding, A. Jacobo, C.A. Miller, C. Rhodes, S.A. Shakir "Model of the Self-Q-Switching Instability of Passively Phased Fiber Arrays" IEEE Journal of Quantum Electronics 47, 777 (2011)

B. Liu, Y. Liu, and Y. Braiman "Coherent Beam Combining of High Power Broad-Area Laser Diode Array with a Closed V-Shape External Talbot Cavity" Optics Express 18, 7361 (2010)

B. Liu, Y. Liu, and Y. Braiman "Linewidth Reduction of Broad-Area Laser Diode Array in a Compound External Cavity" Applied Optics 48, 365 (2009)

Y. Braiman and T. Egami "Nanoscale Oscillatory Fracture Propagation in Metallic Glasses" Physica A 38, 1978 (2009)

B. Liu, Y. Liu, and Y. Braiman "Coherent Addition of High Power Laser Diode Array with a V-Shape External Talbot Cavity" Optics Express 16, 20935 (2008)

Y. Guo, Z. Qu, Y. Braiman, Z. Zhang, and J. Barhen "Nanotribology and Nanoscale Friction" IEEE Controls System Magazine 28(6), 92 (2008)

Y. Braiman and T. Egami "Transitions from Smooth to Oscillatory Fracture Propagation in Brittle Metallic glasses" Phys. Rev. E 77, 065101(R) (2008)