Hao Zhang

ORCID: 0000-0002-2135-5746
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About
Contact & Profiles
Research Areas
  • Laser-Matter Interactions and Applications
  • Laser-induced spectroscopy and plasma
  • Laser-Plasma Interactions and Diagnostics
  • Optical Coherence Tomography Applications
  • Photoacoustic and Ultrasonic Imaging
  • Astro and Planetary Science
  • Orbital Angular Momentum in Optics
  • Advanced Fiber Laser Technologies
  • Thermography and Photoacoustic Techniques
  • Planetary Science and Exploration

Tianjin University
2024

China Aerospace Science and Technology Corporation
2022

Shanghai Institute of Optics and Fine Mechanics
2017-2019

University of Chinese Academy of Sciences
2019

Chinese Academy of Sciences
2017

A new relativistic vortex cutter driven by the Laguerre-Gaussian (LG) mode is carried out for first time in three-dimensional particle-in-cell simulations. Studies show that electric fields periodically concentrate and emanate within every laser wavelength reflected circularly polarized LG_{p}^{l} (p=0, l=1, σ_{z}=-1) laser, which works just like a cutter, resulting ultrashort collimated electron cluster with constant period space. single particle model given verifies formation has close...

10.1103/physrevlett.122.024801 article EN Physical Review Letters 2019-01-14

Discriminative internal imaging for different chip layers can pinpoint the location of critical defect in flip chips, yet existing methods face challenges in-line to identify defects or structures from sub-surface within silicon substrate and their underlying coating. To address these challenges, we develop verify layered elasto-optic models photoacoustic remote sensing microscopy (PARS) that distinguish multi-layers a single device flip-chip wafer inspection. A finite-difference time-domain...

10.1364/oe.524193 article EN cc-by Optics Express 2024-05-21

Crater-like structures are experimentally studied with an ultrashort, ultraintense laser pulse intensity of 1.5 × 1018 W/cm2, irradiating borosilicate glass targets, which extends laser-induced craters to the region relativistic intensities. The morphology crater-like is measured accurately using a three-dimensional scanning confocal microscope and electron microscope. experimental results indicate that circular bowl shape formed depth-to-diameter ratio about 1/5, similar meteorite impact...

10.1063/1.5010050 article EN Applied Physics Letters 2017-10-30

An ultra-short and ultra-intense optical vortex array (OVA) is generated when two intense counter-propagating Laguerre–Gaussian (LG) pulses with [Formula: see text]-polarization impinge on solid thin targets. In this paper, we propose a method for generating an OVA of high intensity, short wavelength, high-order mode. Three-dimensional (3D) particle-in-cell (PIC) simulation results demonstrated that the harmonics interfered each other in transmitted area. These interference patterns...

10.1142/s0218863523500017 article EN Journal of Nonlinear Optical Physics & Materials 2022-03-28
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