scholarly journals Dynamically tunable coherent perfect absorption in topological insulators at oblique incidence

2021 ◽  
Author(s):  
Guilian Lan ◽  
Wei Wei ◽  
Peng Luo ◽  
Juemin Yi ◽  
Zhengguo Shang ◽  
...  
Keyword(s):  
Oblique Incidence ◽  
Topological Insulators ◽  
Perfect Absorption ◽  
Coherent Perfect Absorption

Organic Sub-Bandgap Schottky Barrier Photodetectors with Near-Infrared Coherent Perfect Absorption

ACS Photonics ◽  
2021 ◽  
Author(s):  
Yeonghoon Jin ◽  
Hyung Suk Kim ◽  
Junghoon Park ◽  
Seunghyup Yoo ◽  
Kyoungsik Yu
Keyword(s):  
Schottky Barrier ◽  
Near Infrared ◽  
Perfect Absorption ◽  
Coherent Perfect Absorption

scholarly journals Driving plasmonic nanoantennas at perfect impedance matching using generalized coherent perfect absorption

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Philipp Grimm ◽  
Gary Razinskas ◽  
Jer-Shing Huang ◽  
Bert Hecht
Keyword(s):  
Impedance Matching ◽  
Plasmonic Waveguide ◽  
Perfect Absorption ◽  
Single Nanowire ◽  
Coherent Perfect Absorption ◽  
Potential Applications ◽  
Plasmonic Nanoantennas ◽  
Radiative Losses ◽  
Additional Loss

Abstract Coherent perfect absorption (CPA) describes the absence of all outgoing modes from a lossy resonator, driven by lossless incoming modes. Here, we show that for nanoresonators that also exhibit radiative losses, e.g., plasmonic nanoantennas, a generalized version of CPA (gCPA) can be applied. In gCPA outgoing modes are suppressed only for a subset of (guided plasmonic) modes while other (radiative) modes are treated as additional loss channels - a situation typically referred to as perfect impedance matching. Here we make use of gCPA to show how to achieve perfect impedance matching between a single nanowire plasmonic waveguide and a plasmonic nanoantenna. Antennas with both radiant and subradiant characteristics are considered. We further demonstrate potential applications in background-free sensing.

Tunable coherent perfect absorption in three-dimensional Dirac semimetal films

2021 ◽  
Vol 19 (8) ◽  
pp. 081601
Author(s):  
Jipeng Wu ◽  
Jie Tang ◽  
Rongzhou Zeng ◽  
Xiaoyu Dai ◽  
Yuanjiang Xiang
Keyword(s):  
Three Dimensional ◽  
Perfect Absorption ◽  
Dirac Semimetal ◽  
Coherent Perfect Absorption

An electromagnetic perspective of coherent perfect absorption

2018 ◽  
Vol 94 (1) ◽  
pp. 015502
Author(s):  
Sanjeeb Dey ◽  
Suneel Singh
Keyword(s):  
Perfect Absorption ◽  
Coherent Perfect Absorption

Coherent perfect absorption in unpatterned thin films of intrinsic semiconductor

2020 ◽  
Vol 49 (3) ◽  
pp. 342-350
Author(s):  
Md. Alamgir Badsha ◽  
Md. Humaun Kabir ◽  
Mohammad Abdur Rashid
Keyword(s):  
Thin Films ◽  
Perfect Absorption ◽  
Intrinsic Semiconductor ◽  
Coherent Perfect Absorption

scholarly journals Tunable terahertz coherent perfect absorption in a monolayer graphene

2014 ◽  
Vol 39 (21) ◽  
pp. 6269 ◽  
Author(s):  
Yuancheng Fan ◽  
Fuli Zhang ◽  
Qian Zhao ◽  
Zeyong Wei ◽  
Hongqiang Li
Keyword(s):  
Monolayer Graphene ◽  
Perfect Absorption ◽  
Coherent Perfect Absorption
Sign in / Sign up

Export Citation Format

Share Document