260 citations · 581 across the 23 of their papers we have counts for
23 papers
Breaking the trade-off between invisibility and sensitivity in electromagnetic sensing
Yichao Liu, Jiaxue Zhou, Weifeng Han +6
Weak electromagnetic signals demand highly sensitive sensors, yet increasing a sensor's sensitivity inevitably strengthens its interaction with the surrounding field, producing sca…
Topological-Charge-Enabled Photonic Doping in ENZ Media
Zhicheng Xiong, Fei Sun, Weiqi Yuan +4
Conventional photonic doping schemes predominantly employ circular or rectangular dielectric dopants with zero topological charge, where the effective permeability can only be tune…
Cloaking of Arbitrarily Shaped Large-Scale Objects Through the Injection of Electromagnetic Invisibility Genes
Zirui Xie, Fei Sun, Yichao Liu +3
Full-space electromagnetic invisibility mainly includes light-bending and scattering-cancellation cloaking. Light-bending cloaking causes double-blind phenomenon and is incompatibl…
Decoupling heat and electricity: A thermal invisible gateway
Jiahao Li, Fei Sun, Yichao Liu +4
The Wiedemann-Franz law couples electrical and thermal conductivity, making high electrical conduction with low thermal conduction a major challenge. To overcome this, we designed…
Deep Learning-Enabled Invisible Electromagnetic Scattering Amplifier
Qike Xie, Qin Liao, Xiaofan Ji +2
With the rapid development of micro-electro-mechanical systems, electrically small micro-targets, such as subwavelength micro unmanned aerial vehicles and bionic mosquito robots, e…
True Bound States in the Continuum in Compact All-Dielectric Structures
Yiyun Yan, Yichao Liu, Fei Sun +1
Bound states in the continuum (BICs), known for their theoretically infinite quality (Q) factors and strong field localization, hold great promise for high-performance photonic dev…
Broadband Simultaneous Beam Steering and Compressing Device Based on Subwavelength Protrusion Metallic Tunnels
Dongguo Zhang, Fei Sun, Qin Liao +2
Beam steering and beamwidth compressing play a role in steering the beam and narrowing its half-power beamwidth, respectively, which are both widely applied in extending the effect…
Thermal superscatterer: amplification of thermal scattering signatures for arbitrarily shaped thermal materials
Yichao Liu, Yawen Qi, Fei Sun +7
The concept of superscattering is extended to the thermal field through the design of a thermal superscatterer based on transformation thermodynamics. A small thermal scatterer of…
Implementation of ultra-broadband optical null media via space-folding
Yichao Liu, Jiale Li, Fei Sun +3
Optical null medium (ONM) has garnered significant attention in electromagnetic wave manipulation. However, existing ONM implementations suffer from either narrow operational bandw…
Broadband source-surrounded cloak for on-chip antenna radiation pattern protection
Hanchuan Chen, Fei Sun, Yichao Liu +3
As the frequency range of electromagnetic wave communication continues to expand and the integration of integrated circuits increases, electromagnetic waves emitted by on-chip ante…
Ultra-broadband acoustic absorber based on periodic acoustic rigid-metaporous composite array
Dongguo Zhang, Fei Sun, Yichao Liu
To address the increasingly serious issue of noise pollution, we propose an ultra-broadband and wide-angle acoustic absorber based on a periodic acoustic rigid-metaporous composite…
Broadband planar electromagnetic hyper-lens with uniform magnification in air
Ran Sun, Fei Sun, Hanchuan Chen +2
A planar hyper-lens, capable of creating sub-wavelength imaging for broadband electromagnetic wave, is designed based on electromagnetic null medium. Subsequently, a scheme for the…
Experimental demonstration of a thermal-EM concentrator for enhancing EM signals and converging heat fluxes simultaneously
Hanchuan Chen, Yichao Liu, Fei Sun +3
Simultaneously concentrating EM waves and heat fluxes to the same target region within an on-chip system carries substantial academic research importance and practical application…
Tunable uniform field enhancement in a subwavelength air pillar by photonic doping in epsilon-near-zero medium
Fei Sun, Jinyuan Shan, Yichao Liu
In this study, a novel electric field compressor is proposed by doping a metal-air-metal pillar in epsilon-near-zero medium within a metallic waveguide, which effectively enhances…
On-chip omnidirectional electromagnetic-thermal cloak
Yichao Liu, Hanchuan Chen, Gang Zhao +1
Simultaneously guiding electromagnetic waves and heat flow at any incidence angle to smoothly bypass some electromagnetic/thermal sensitive elements is a key factor to ensure effic…
Simultaneously realizing thermal and electromagnetic cloaking by multi-physical null medium
Yichao Liu, Xiaomin Ma, Kun Chao +6
Simultaneously manipulating multiple physical fields plays an important role in the increasingly complex integrated systems, aerospace equipment, biochemical productions, etc. For…
Active thermal metasurfaces for remote heating/cooling by mimicking negative thermal conductivity
Yichao Liu, Kun Chao, Fei Sun +3
Remote temperature control can be obtained by a long-focus thermal lens that can focus heat fluxes into a spot far away from the back surface of the lens and create a virtual therm…
An acoustic metamaterial lens for acoustic point-to-point communication in air
Fei Sun, Shuwei Guo, Borui Li +2
Acoustic metamaterials have become a novel and effective way to control sound waves and design acoustic devices. In this study, we design a 3D acoustic metamaterial lens (AML) to a…
Three-dimensional magnetic cloak working from DC to 250 kHz
Jianfei Zhu, Wei Jiang, Yichao Liu +4
Invisible cloaking is one of major outcomes of the metamaterial research, but the practical potential, in particular for high frequencies (e.g., microwave to visible light), is fat…
Experimental demonstration of a multiphysics cloak: manipulating heat flux and electric current simultaneously
Yungui Ma, Yichao Liu, Muhammad Raza +2
In past years, triggered by their successful realizations in electromagnetics, invisible cloaks have experienced rapid development and have been widely pursued in many different fi…
An efficient plate heater with uniform surface temperature engineered with effective thermal materials
Yichao Liu, Wei Jiang, Sailing He +1
Extended from its electromagnetic counterpart, transformation thermodynamics applied to thermal conduction equations can map a virtual geometry into a physical thermal medium, real…
Experimentally demonstrated an unidirectional electromagnetic cloak designed by topology optimization
Lu Lan, Fei Sun, Yichao Liu +2
Electromagnetic invisible devices usually designed by transformation optics are rather complicated in material parameters and not suitable for general applications. Recently a topo…
First experimental demonstration of an isotropic electromagnetic cloak with strict conformal mapping
Yungui Ma, Yichao Liu, Lu Lan +4
In the past years quasi-conformal mapping has been typically used to design broadband electromagnetic cloaks. However, this technique has some inherit practical limitations such as…