Ji-Ping Huang

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Ji-Ping Huang (alternative spelling forms: J. P. Huang or Jiping Huang; simplified Chinese: 黄吉平；born 8 January 1977) is a Chinese theoretical physicist known for his invention of the concept of diffusion metamaterials. [1] [2]

Contents

Education

Huang obtained a BSc and MSc from the Department of Physics at Soochow University, China, in 1998 and 2000, respectively. He earned his PhD from the Department of Physics at the Chinese University of Hong Kong, China, in 2003. [3] [4]

Career

Huang was a postdoctoral researcher at the Max Planck Institute for Polymer Research, Germany, from 2003 to 2004. He then held the position of a Humboldt Research Fellow at the same institute from 2004 to 2005. In 2005, he assumed the role of a professor in the Department of Physics at Fudan University, China. [3] [4]

Research

His research area encompasses thermodynamics, statistical physics, and complex systems, with a particular emphasis on transformation thermotics and its extended theories, thermal metamaterials and their engineering applications, diffusionics, diffusion metamaterials, and diffusion control. [3] [4]

Thermal cloak, thermal metamaterials, and diffusion metamaterials

In 2008, Huang introduced the concept of a thermal cloak. [5] During that period, he formulated the steady-state transformation thermotics theory, drawing inspiration from the transformation optics theory. [6] He introduced the novel idea of a thermal cloak, drawing parallels with optical and electromagnetic cloaks. [6] The term "thermal cloak" refers to a protective shell enveloping an object, enabling the unobstructed passage of heat while preserving the temperature and heat flow patterns in the surrounding background. [5] [7] [8]

Subsequently, the concept of the thermal cloak underwent significant extensions. First, it evolved from the thermal cloak to thermal metamaterials. [9] Second, it further advanced from thermal metamaterials to diffusion metamaterials. [1] [2] [10] The description of diffusion metamaterials employs transformation theory and extended theories, a field referred to as diffusionics. [2] According to the categorization of governing equations, diffusion metamaterials constitute the third branch of metamaterials to emerge, setting themselves apart from the two previously established branches: electromagnetic/optical (transverse) wave metamaterials pioneered by Sir John Brian Pendry, [11] [12] and other (longitudinal/transverse) wave metamaterials pioneered by Ping Sheng. [13] Currently, these three branches represent the comprehensive framework of the thriving field of metamaterials. For diffusion metamaterials that regulate diverse diffusion processes, the characteristic length coincides with the diffusion length, which is dependent on time but independent of frequency. Conversely, for wave metamaterials that manipulate various wave propagation modes, the characteristic length corresponds to the wavelength of incident waves, which is independent of time but dependent on frequency. In essence, the characteristic length of diffusion metamaterials stands in contrast to that of wave metamaterials, exhibiting a complementary relationship. For more in-depth information, please consult Section I.B of Ref. [2]

Related Research Articles

<span class="mw-page-title-main">Metamaterial</span> Materials engineered to have properties that have not yet been found in nature

A metamaterial is any material engineered to have a property that is rarely observed in naturally occurring materials. They are made from assemblies of multiple elements fashioned from composite materials such as metals and plastics. These materials are usually arranged in repeating patterns, at scales that are smaller than the wavelengths of the phenomena they influence. Metamaterials derive their properties not from the properties of the base materials, but from their newly designed structures. Their precise shape, geometry, size, orientation and arrangement gives them their smart properties capable of manipulating electromagnetic waves: by blocking, absorbing, enhancing, or bending waves, to achieve benefits that go beyond what is possible with conventional materials.

Negative refraction is the electromagnetic phenomenon where light rays become refracted at an interface that is opposite to their more commonly observed positive refractive properties. Negative refraction can be obtained by using a metamaterial which has been designed to achieve a negative value for (electric) permittivity (ε) and (magnetic) permeability (μ); in such cases the material can be assigned a negative refractive index. Such materials are sometimes called "double negative" materials.

A superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution depending on the illumination wavelength and the numerical aperture (NA) of the objective lens. Many lens designs have been proposed that go beyond the diffraction limit in some way, but constraints and obstacles face each of them.

<span class="mw-page-title-main">John Pendry</span> British physicist

Sir John Brian Pendry, is an English theoretical physicist known for his research into refractive indices and creation of the first practical "Invisibility Cloak". He is a professor of theoretical solid state physics at Imperial College London where he was head of the department of physics (1998–2001) and principal of the faculty of physical sciences (2001–2002). He is an honorary fellow of Downing College, Cambridge, and an IEEE fellow. He received the Kavli Prize in Nanoscience "for transformative contributions to the field of nano-optics that have broken long-held beliefs about the limitations of the resolution limits of optical microscopy and imaging.", together with Stefan Hell, and Thomas Ebbesen, in 2014.

<span class="mw-page-title-main">Extraordinary optical transmission</span>

Extraordinary optical transmission (EOT) is the phenomenon of greatly enhanced transmission of light through a subwavelength aperture in an otherwise opaque metallic film which has been patterned with a regularly repeating periodic structure. Generally when light of a certain wavelength falls on a subwavelength aperture, it is diffracted isotropically in all directions evenly, with minimal far-field transmission. This is the understanding from classical aperture theory as described by Bethe. In EOT however, the regularly repeating structure enables much higher transmission efficiency to occur, up to several orders of magnitude greater than that predicted by classical aperture theory. It was first described in 1998.

<span class="mw-page-title-main">Split-ring resonator</span> A resonator

A split-ring resonator (SRR) is an artificially produced structure common to metamaterials. Its purpose is to produce the desired magnetic susceptibility in various types of metamaterials up to 200 terahertz.

The Fermi–Ulam model (FUM) is a dynamical system that was introduced by Polish mathematician Stanislaw Ulam in 1961.

<span class="mw-page-title-main">Negative-index metamaterial</span> Material with a negative refractive index

Negative-index metamaterial or negative-index material (NIM) is a metamaterial whose refractive index for an electromagnetic wave has a negative value over some frequency range.

<span class="mw-page-title-main">Terahertz metamaterial</span>

A terahertz metamaterial is a class of composite metamaterials designed to interact at terahertz (THz) frequencies. The terahertz frequency range used in materials research is usually defined as 0.1 to 10 THz.

<span class="mw-page-title-main">Acoustic metamaterial</span> Material designed to manipulate sound waves

An acoustic metamaterial, sonic crystal, or phononic crystal is a material designed to control, direct, and manipulate sound waves or phonons in gases, liquids, and solids. Sound wave control is accomplished through manipulating parameters such as the bulk modulus β, density ρ, and chirality. They can be engineered to either transmit, or trap and amplify sound waves at certain frequencies. In the latter case, the material is an acoustic resonator.

<span class="mw-page-title-main">Photonic metamaterial</span> Type of electromagnetic metamaterial

A photonic metamaterial (PM), also known as an optical metamaterial, is a type of electromagnetic metamaterial, that interacts with light, covering terahertz (THz), infrared (IR) or visible wavelengths. The materials employ a periodic, cellular structure.

<span class="mw-page-title-main">Metamaterial cloaking</span> Shielding an object from view using materials made to redirect light

Metamaterial cloaking is the usage of metamaterials in an invisibility cloak. This is accomplished by manipulating the paths traversed by light through a novel optical material. Metamaterials direct and control the propagation and transmission of specified parts of the light spectrum and demonstrate the potential to render an object seemingly invisible. Metamaterial cloaking, based on transformation optics, describes the process of shielding something from view by controlling electromagnetic radiation. Objects in the defined location are still present, but incident waves are guided around them without being affected by the object itself.

A metamaterial absorber is a type of metamaterial intended to efficiently absorb electromagnetic radiation such as light. Furthermore, metamaterials are an advance in materials science. Hence, those metamaterials that are designed to be absorbers offer benefits over conventional absorbers such as further miniaturization, wider adaptability, and increased effectiveness. Intended applications for the metamaterial absorber include emitters, photodetectors, sensors, spatial light modulators, infrared camouflage, wireless communication, and use in solar photovoltaics and thermophotovoltaics.

<span class="mw-page-title-main">History of metamaterials</span>

The history of metamaterials begins with artificial dielectrics in microwave engineering as it developed just after World War II. Yet, there are seminal explorations of artificial materials for manipulating electromagnetic waves at the end of the 19th century. Hence, the history of metamaterials is essentially a history of developing certain types of manufactured materials, which interact at radio frequency, microwave, and later optical frequencies.

<span class="mw-page-title-main">Theories of cloaking</span>

Theories of cloaking discusses various theories based on science and research, for producing an electromagnetic cloaking device. Theories presented employ transformation optics, event cloaking, dipolar scattering cancellation, tunneling light transmittance, sensors and active sources, and acoustic cloaking.

Mechanical metamaterials are artificial materials with mechanical properties that are defined by their mesostructure in addition to than their composition. They can be seen as a counterpart to the rather well-known family of optical metamaterials. They are often also termed elastodynamic metamaterials and include acoustic metamaterials as a special case of vanishing shear. Their mechanical properties can be designed to have values which cannot be found in nature.

Dyakonov surface waves (DSWs) are surface electromagnetic waves that travel along the interface in between an isotropic and an uniaxial-birefringent medium. They were theoretically predicted in 1988 by the Russian physicist Mikhail Dyakonov. Unlike other types of acoustic and electromagnetic surface waves, the DSW's existence is due to the difference in symmetry of materials forming the interface. He considered the interface between an isotropic transmitting medium and an anisotropic uniaxial crystal, and showed that under certain conditions waves localized at the interface should exist. Later, similar waves were predicted to exist at the interface between two identical uniaxial crystals with different orientations. The previously known electromagnetic surface waves, surface plasmons and surface plasmon polaritons, exist under the condition that the permittivity of one of the materials forming the interface is negative, while the other one is positive. In contrast, the DSW can propagate when both materials are transparent; hence they are virtually lossless, which is their most fascinating property.

Illusion optics is an electromagnetic theory that can change the optical appearance of an object to be exactly like that of another virtual object, i.e. an illusion, such as turning the look of an apple into that of a banana. Invisibility is a special case of illusion optics, which turns objects into illusions of free space. The concept and numerical proof of illusion optics was proposed in 2009 based on transformation optics in the field of metamaterials. It is a scientific disproof of the idiom 'Seeing is Believing'.

<span class="mw-page-title-main">Anatoliy Zahorodniy</span> Ukrainian physicist (born 1951)

Anatoliy Hlibovych Zahorodniy is a Ukrainian theoretical physicist and an organizer of science; an academician of NANU, Vice President (2011-2020) and President of the National Academy of Sciences of Ukraine. Director of Nikolay Bogolyubov Institute of Theoretical Physics of the NAS of Ukraine. Doctor of Physical and Mathematical Sciences (1990), Professor (1998), Laureate of the State Prize of Ukraine in Science and Technology (2005), Honored Worker of Science and Technology of Ukraine (2012). He has been a Member of the National Security and Defense Council of Ukraine.

Diffusion metamaterials are a subset of the metamaterial family, which primarily comprises thermal metamaterials, particle diffusion metamaterials, and plasma diffusion metamaterials. Currently, thermal metamaterials play a pivotal role within the realm of diffusion metamaterials. The applications of diffusion metamaterials span various fields, including heat management, chemical sensing, and plasma control, offering capabilities that surpass those of traditional materials and devices.

References

  1. 1 2 Z. R. Zhang, L. J. Xu, T. Qu, M. Lei, Z.-K. Lin, X. P. Ouyang, J.-H. Jiang, J. P. Huang (2023). "Diffusion metamaterials". Nat. Rev. Phys. 5 (4): 218. Bibcode:2023NatRP...5..218Z. doi:10.1038/s42254-023-00565-4. S2CID   257724829.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  2. 1 2 3 4 F. B. Yang, Z. R. Zhang, L. J. Xu, Z. F. Liu, P. Jin, P. F. Zhuang, M. Lei, J. R. Liu, J.-H. Jiang, X. P. Ouyang, F. Marchesoni, J. P. Huang (2024). "Controlling mass and energy diffusion with metamaterials". Rev. Mod. Phys. 96 (1): 015002. arXiv: 2309.04711 . doi:10.1103/RevModPhys.96.015002.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. 1 2 3 "黄吉平". phys.fudan.edu.cn.
  4. 1 2 3 "个人介绍(Huang's CV)". thermotics.fudan.edu.cn.
  5. 1 2 C. Z. Fan, Y. Gao, J. P. Huang (2008). "Shaped graded materials with an apparent negative thermal conductivity". Appl. Phys. Lett. 92 (25): 251907. Bibcode:2008ApPhL..92y1907F. doi: 10.1063/1.2951600 .{{cite journal}}: CS1 maint: multiple names: authors list (link)
  6. 1 2 J. B. Pendry, D. Schurig, D. R. Smith (2006). "Controlling electromagnetic fields". Science. 312 (5781): 1780–1782. Bibcode:2006Sci...312.1780P. doi: 10.1126/science.1125907 . PMID   16728597.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  7. ↑ T. Y. Chen, C.-N. Weng, J.-S. Chen (2008). "Cloak for curvilinearly anisotropic media in conduction". Appl. Phys. Lett. 93 (11): 114103. Bibcode:2008ApPhL..93k4103C. doi:10.1063/1.2988181.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  8. ↑ W. S. Yeung, R. J. Yang (2022). Introduction to Thermal Cloaking: Theory and Analysis in Conduction and Convection. Singapore: Springer.
  9. ↑ M. Maldovan (2013). "Sound and heat revolutions in phononics". Nature. 503 (7475): 209–217. Bibcode:2013Natur.503..209M. doi:10.1038/nature12608. PMID   24226887. S2CID   4444477.
  10. ↑ F. B. Yang, J. P. Huang (2024). Diffusionics: Diffusion Process Controlled by Diffusion Metamaterials. Singapore: Springer.
  11. ↑ J. B. Pendry, A. Holden, W. Stewart, I. Youngs (1996). "Extremely low frequency plasmons in metallic mesostructures". Phys. Rev. Lett. 76 (25): 4773–4776. Bibcode:1996PhRvL..76.4773P. doi:10.1103/PhysRevLett.76.4773. PMID   10061377.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  12. ↑ J. B. Pendry, A. Holden, D. Robbins, W. Stewart (1999). "Magnetism from conductors and enhanced nonlinear phenomena". IEEE Trans. Microw. Theory Tech. 47 (11): 2075–2084. Bibcode:1999ITMTT..47.2075P. doi:10.1109/22.798002.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  13. ↑ Z. Y. Liu, X. X. Zhang, Y. W. Mao, Y. Y. Zhu, Z. Y. Yang, C. T. Chan, P. Sheng (2000). "Locally resonant sonic materials". Science. 289 (5485): 1734–1736. Bibcode:2000Sci...289.1734L. doi:10.1126/science.289.5485.1734. PMID   10976063.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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