Joshua Bocanegra

ORCID: 0000-0002-3300-2833
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About
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Research Areas
  • Diamond and Carbon-based Materials Research
  • Analytical Chemistry and Sensors
  • Quantum and electron transport phenomena
  • Neural Networks and Reservoir Computing
  • Plasmonic and Surface Plasmon Research
  • Laser Material Processing Techniques
  • Magnetic properties of thin films
  • Advanced Photonic Communication Systems
  • Advanced Fiber Laser Technologies
  • Laser-induced spectroscopy and plasma
  • Nanowire Synthesis and Applications
  • Nonlinear Optical Materials Studies
  • Optical Network Technologies
  • Physics of Superconductivity and Magnetism

University of California, Irvine
2023-2024

University of California, Riverside
2021

Abstract Femtosecond-laser-assisted material restructuring employs extreme optical intensities to localize the ablation regions. To overcome minimum feature size limit set by wave nature of photons, there is a need for new approaches tailored processing at nanoscale. Here, we report formation deeply-subwavelength features in silicon, enabled localized laser-induced phase explosions prefabricated silicon resonators. Using short trains mid-infrared laser pulses, demonstrate controllable high...

10.1038/s41467-023-42263-w article EN cc-by Nature Communications 2023-10-21

The ability to control and tune magnetic dissipation is a key concept of emergent spintronic technologies. Magnon scattering processes constitute major channel in nanomagnets, redefine their response spin torque, hold the promise for manipulating states on quantum level. Controlling these while being imperative applications, has remained difficult achieve. Here, we propose an approach controlling magnon by switch that generates nonuniform field at nanoscale. We provide experimental...

10.1021/acsami.1c01562 article EN ACS Applied Materials & Interfaces 2021-04-22

Single photon emitters (SPEs) in hexagonal boron nitride (hBN) are elementary building blocks for room-temperature on-chip quantum photonic technologies. However, fundamental challenges, such as slow radiative decay and nondeterministic placement of the emitters, limit their full potential. Here, we demonstrate large-area arrays plasmonic nanoresonators (PNRs) Purcell-induced SPEs by engineering emitter-cavity coupling enhancing emission. Gold-coated silicon pillars with an alumina spacer...

10.1021/acs.nanolett.4c02581 article EN cc-by-nc-nd Nano Letters 2024-09-23

Nanophotonic structures have shown promising routes to controlling and enhancing nonlinear optical processes at the nanoscale. However, most nanostructures require a handling substrate, reducing their application scope. Due underwhelming heat dissipation, it has been challenge evaluate properties of free-standing nanostructures. Here, we overcome this by performing shot-controlled fifth harmonic generation (FHG) measurements on SiC meta-membrane - transmission metasurface with pronounced...

10.1515/nanoph-2024-0203 article EN cc-by Nanophotonics 2024-07-23

Single photon emitters (SPEs) hosted in hexagonal boron nitride (hBN) are essential elementary building blocks for enabling future on-chip quantum photonic technologies that operate at room temperature. However, fundamental challenges, such as managing non-radiative decay, competing incoherent processes, well engineering difficulties achieving deterministic placement and scaling of the emitters, limit their full potential. In this work, we experimentally demonstrate large-area arrays...

10.48550/arxiv.2405.02516 preprint EN arXiv (Cornell University) 2024-05-03
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