Targets with cone-shaped microstructures from various materials for enhanced high-intensity laser–matter interaction

Ebert, Tina; Heber, René; Abel, Torsten; Bieker, Johannes; Schaumann, G.; Roth, Markus

doi:10.1017/hpl.2021.10

Cited by 35 publications

(10 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The target is initialized as fully ionized aluminum plasmas with a density of n p = 1 × 10 29 m −3 , where its initial temperature is 100 eV. Such cone targets are readily attainable with state-of-the-art target technologies [55], which have been applied in a variety of laser-based studies such as laser fusion [56,57], high-energy-density physics [58], radiation reaction effects [59,60], and laser microtube implosions [61]. However, the direct interaction of ultra-relativistic electron beam with cone target and the magnetic pinching have not been explored.…”

Section: Numerical Simulationmentioning

confidence: 99%

Magnetic pinching of relativistic particle beams: a new approach to strong-field QED physics

Zhu,

Liu,

Chen

et al. 2023

New J. Phys.

View full text Add to dashboard Cite

Quantum electrodynamics (QED) is a foundation of modern physics, yet access to the strong-field QED regime in the laboratory remains a formidable challenge. Currently, high-power lasers at the multi-petawatt level and above are generally believed to be an important approach to test QED physics. Here, we present a different approach by use of an electron beam self-pinched to near-solid-density. The beam self-pinching is realized while it transports through a properly designed hollow cone target, where strong azimuthal magnetic fields are generated by the beam-induced plasma return currents at the inner surface of the cone target. In this way, the beam diameter can be reduced by more than an order of magnitude down to submicron and its density is increased by hundreds of times. The produced ultradense electron beams can unlock a new regime of QED-dominated beam-plasma interactions, for example, more than 60% of the beam energy can be converted into GeV gamma-rays with unprecedented brilliance when such a beam passes through a thin solid foil. Moreover, with proper parameter design, this beam-focusing scheme can also be applied to positron beams and thus may find applications in broad areas, such as particle colliders and strong-field physics.

show abstract

Section: Numerical Simulationmentioning

confidence: 99%

Magnetic pinching of relativistic particle beams: a new approach to strong-field QED physics

Zhu,

Liu,

Chen

et al. 2023

New J. Phys.

View full text Add to dashboard Cite

show abstract

“…[37][38][39][40][41][42][43] Geometric phase metasurfaces use the phase difference generated by the different geometric paths of the electromagnetic wave in the process of polarization state transformation to control the light wave transmission phase. [45][46][47][48][49][50][51][52][53][54][55][56] Currently, most metasurface devices are based on single-phase modulation. We use the superposition of the transmission phase and geometric phase to control the polarization state and focusing properties of the electromagnetic wavefront.…”

Section: Introductionmentioning

confidence: 99%

Flexible Control of Phase and Polarization based on All‐Dielectric Metamaterials

Zhang

et al. 2023

Adv Quantum Tech

View full text Add to dashboard Cite

A metasurface is a planar structure that can flexibly control the polarization, phase, and amplitude of incident electromagnetic waves. An all‐dielectric hexagonal cell structure to reduce the interaction between cells and achieve efficient parametric regulation of electromagnetic waves is proposed. The single resonant transmission phase and the geometric phase are superimposed to realize the composite phase unit structure and construct a multifunctional flat metasurface device. The designed metasurface can flexibly tune the phase and polarization of incident electromagnetic waves and enable multifunctional integration phenomena, such as polarization separation, light intensity convergence, and vector light generation, on a single metasurface.

show abstract

“…In recent years, the research and application of metasurfaces are more extensive, and the development prospects are also broader. [ 25–44 ] Metasurfaces can be well used in beam separation, abnormal beam deflection, polarization conversion, stealth devices, holography and other fields. [ 45–60 ]…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the research and application of metasurfaces are more extensive, and the development prospects are also broader. [25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] Metasurfaces can be well used in beam separation, abnormal beam deflection, polarization conversion, stealth devices, holography and other fields. [45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60] Recently, Cui first proposed the concept of digitally encoded metasurfaces.…”

Section: Introductionmentioning

confidence: 99%

Transmitted Electromagnetic Beam Steering of Pyramid All‐Dielectric Encoding Surface Microstructure

Zhao,

Zhang,

Fang

et al. 2023

Adv Quantum Tech

View full text Add to dashboard Cite

A transmission‐type all‐medium element is proposed to construct a coded metasurface. Due to the single‐layer metasurface unit structure, large reflection loss will be caused when the base plane is incident. In order to improve the efficiency of the coded metasurface device and reduce the reflection loss, the authors propose a double‐sided metasurface digital unit structure and introduces a wideband anti‐reflection pyramid microstructure to achieve significantly improved transmission characteristics. The optimized unit structure is coded and the coded metasurface is constructed. Different coding metasurface sequences are constructed based on 1‐bit, 2‐bit, and 3‐bit digital coding units. According to generalized Snell's law, the number of transmitted beams can be controlled. The authors introduce complex code addition theory to construct multifunctional beam control metasurface. Based on the far field scattering theory of metasurface, the addition theory of different sequences of transmission‐coded metasurface is analyzed. The addition operation of the superposition of two sets of symmetric double beams and two sets of ordinary double beams can be realized. Based on the analysis of far‐field scattering characteristics, the multifunctional coded metasurface is demonstrated, that is, multiple functions are simultaneously superimposed in one array without interference.

show abstract

Targets with cone-shaped microstructures from various materials for enhanced high-intensity laser–matter interaction

Cited by 35 publications

References 22 publications

Magnetic pinching of relativistic particle beams: a new approach to strong-field QED physics

Magnetic pinching of relativistic particle beams: a new approach to strong-field QED physics

Flexible Control of Phase and Polarization based on All‐Dielectric Metamaterials

Transmitted Electromagnetic Beam Steering of Pyramid All‐Dielectric Encoding Surface Microstructure

Contact Info

Product

Resources

About