31 citations · 70 across the 17 of their papers we have counts for
14 papers · 1 filter
Omnidirectional wave impedance matching and Goos-Hanchen shifts in non-Hermitian balanced positive-negative index metamaterials
Jeng Yi Lee, Chia-Heng Sun, Ke-Hsiang Huang +1
Wave reflection by non-Hermitian antisymmetric parity-time (APT) photonics made of a balanced positive index material (PIM) and negative index material (NIM) is investigated. As on…
Continuous coherent perfect absorption and lasing at an exceptional point of anti-parity-time symmetric photonic structures
Jeng Yi Lee
We consider a type of hypothetical compound materials in which its refractive index in spatial distribution meet , belonging to anti-parity-time (APT) symmetric st…
Dark Superabsorbers with Dirac-delta-like superdirective radiation
Jeng Yi Lee, Irving Rondon, Andrey E. Miroshnichenko +1
We theoretically and numerically reveal that under a given level of extinction cross section and with definite angular momentum channels dominant, there exists a physical limitatio…
Unidirectional polarization beam splitters via exceptional points and finite periodicity of Non-Hermitian PT-symmetry
Jeng Yi Lee
We present a theoretical study of a novel polarization beam splitter (PBS), different to conventional time-reversal symmetry one, where can be totally reflected at two opposite sid…
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…
Degeneracy of cross sections in scattering of light
Jeng Yi Lee
We theoretically and numerically prove that under an electromagnetic plane wave with linear polarization incident normally to cylindrical passive scatterers, a single energy diagra…
Broadband Control on Scattering Events with Interferometric Coherent Waves
Jeng Yi Lee, Lujun Huang, Lei Xu +2
We propose a universal strategy to realize a broadband control on arbitrary scatterers, through multiple coherent beams. By engineering the phases and amplitudes of incident beams,…
Linear control of light scattering with multiple coherent light excitation
Jeng Yi Lee, Yueh-Heng Chung, Andrey E. Miroshnichenko +1
With the wave interferometric approach, we study how extrinsically multiple coherent waves excitation can dramatically alter the overall scattering states, resulting in tailoring t…
Beyond Kerker's conditions: simultaneously nearly zero forward and nearly zero backward scatterings
Jeng Yi Lee, Andrey E. Miroshnichenk, Ray-kuang Lee
With theoretical analyses and numerical calculations, we show that a passive scatterer at the sub-wavelength scale can simultaneously exhibit both nearly zero forward scattering (N…
Exploring matter wave scattering by means of the phase diagram
Jeng Yi Lee, Ray-Kuang Lee
For matter wave scattering from passive quantum obstacles, we propose a phase diagram in terms of phase and modulus of scattering coefficients to explore all possible directional s…
Revisit Kerker's conditions by means of the phase diagram
Jeng Yi Lee, Andrey E. Miroshnichenko, Ray-Kuang Lee
For passive electromagnetic scatterers, we explore a variety of extreme limits on directional scattering patterns in phase diagram, regardless of details on the geometric configura…
Phase diagram to design passive nanostructures
Jeng Yi Lee, Ray-Kuang Lee
A phase diagram, defined by the amplitude square and phase of scattering coefficients for absorption cross-section in each individual channel, is introduced as a universal map on t…