205 citations · 382 across the 17 of their papers we have counts for
17 papers
Emulating the Deutsch-Josza algorithm with an inverse-designed terahertz gradient-index lens
Ashley N. Blackwell, Riad Yahiaoui, Yi-Huan Chen +3
Photonic systems utilized as components for optical computing promise the potential of enhanced computational ability over current computer architectures. Here, an all-dielectric p…
Sound Waveguiding by Spinning: An Avenue towards Unidirectional Acoustic Spinning Fibers
Mohamed Farhat, Pai-Yen Chen, Ying Wu
Waveguiding in general and acoustic waveguiding in particular are possible at the condition of having a transverse "discontinuity" or modulation of the refractive index. We propose…
Wave propagation, bidirectional transparency, and coherent perfect absorption-lasing in finite periodic PT-symmetric waveguide networks
Jeng Yi Lee, Pai-Yen Chen
We theoretically and numerically investigate the scattering behavior of a periodic parity-time (PT)-symmetric waveguide network composed of a finite number of unit cells. Specifica…
Optical symmetric pushing, uni-/bi-directional null, and pulling-pushing flipped forces in one dimensional PT-symmetric photonics
Jeng Yi Lee, Pai-Yen Chen
We discuss the optical forces exerted on parity-time (PT) symmetric heterostructures under normal incidence of a single and two counter-propagating plane waves. The underlying stra…
Generalized Parametric Space, Parity Symmetry of Reflection, and Systematic Design Approach for Parity-Time Symmetric Photonic Systems
Jeng Yi Lee, Pai-Yen Chen
Based on the reciprocity theorem, we put forward a generalized parametric space for an arbitrary transfer matrix with parity time (PT) symmetry. Through this space, one can extract…
Tunable THz generation and enhanced nonlinear effects with active and passive graphene hyperbolic metamaterials
Boyuan Jin, Tianjing Guo, Liang Zhu +2
The active and nonlinear graphene properties are limited due to weak light matter interaction between the ultrathin graphene and the incident light. In this work, we present enhanc…
Superdirective Leaky Radiation from a PT-Synthetic Metachannel
Mehdi Hajizadegan, Pai-Yen Chen
Spectral singularities appearing in parity-time (PT)-symmetric non-Hermitian optical systems have aroused a growing interest due to their new, exhilarating applications, such as bi…
Scattering theory and cancellation of gravity-flexural waves of floating plates
Mohamed Farhat, Pai-Yen Chen, Hakan Bagci +2
We combine theories of scattering for linearized water waves and flexural waves in thin plates to characterize and achieve control of water wave scattering using floating plates. T…
Scattering Cancellation based Cloaking for the Maxwell-Cattaneo Heat Waves
M. Farhat, S. Guenneau, P. -Y. Chen +2
In this work we theoretically propose scattering cancellation-based cloaks for heat waves that obey the Maxwell-Cattaneo equation. The proposed cloaks possess carefully tailored di…
Generalized Parity-Time Symmetry Condition for Enhanced Sensor Telemetry
Pai-Yen Chen, Maryam Sakhdari, Mehdi Hajizadegan +4
Wireless sensors based on micro-machined tunable resonators are important in a variety of applications, ranging from medical diagnosis to industrial and environmental monitoring.Th…
Tunable Terahertz Amplification Based on Photoexcited Active Graphene Hyperbolic Metamaterials
Tianjing Guo, Liang Zhu, Pai-Yen Chen +1
The efficient amplification and lasing of electromagnetic radiation at terahertz (THz) frequencies is a non-trivial task achieved mainly by quantum cascade laser configurations wit…
Thermally Oxidized Two-dimensional TaS2 as a High-\k{appa} Gate Dielectric for MoS2 Field-Effect Transistors
Bhim Chamlagain, Qingsong Cui, Sagar Paudel +3
We report a new approach to integrating high-\k{appa} dielectrics in both bottom- and top-gated MoS2 field-effect transistors (FETs) through thermal oxidation and mechanical assemb…
Superluminal plasmons with resonant gain in population inverted bilayer graphene
Tony Low, Pai-Yen Chen, D. N. Basov
AB-stacked bilayer graphene with a tunable electronic bandgap in excess of the optical phonon energy presents an interesting active medium, and we consider such theoretical possibi…
Flexural Mie Resonances: Localized Surface Platonic Modes
M. Farhat, S. Guenneau, P. Y. Chen +2
Surface plasmons polaritons were thought to exist only in metals near their plasma frequencies. The concept of spoof plasmons extended the realms of plasmonics to domains such as r…
Theory of diffusive light scattering cancellation cloaking
Mohamed Farhat, Pai-Yen Chen, Sebastien Guenneau +3
We report on a new concept of cloaking objects in diffusive light regime using the paradigm of the scattering cancellation and mantle cloaking techniques. We show numerically that…
Giant Photoresponsivity of Mid-Infrared Hyperbolic Metamaterials in the Quantum Regime
Pai-Yen Chen, Mehdi Hajizadegan, Maryam Sakhdari +1
We explore broadband, wide-angle mid-infrared rectification based on nanopatterned hyperbolic metamaterials (HMM), composed of two dissimilar metals separated by a sub-nanometer tu…
Broadening the Bandwidth of Metamaterial Cloaks with Non-Foster Metasurfaces
Pai-Yen Chen, Christos Argyropoulos, Andrea Alu
We introduce the concept and practical design of broadband, ultrathin cloaks based on non-Foster, negatively capacitive metasurfaces. By using properly tailored, active frequency-s…