scholarly journals Electrically tunable guided mode resonance grating for switchable photoluminescence

2021 ◽  
Author(s):  
Alok Ghanekar ◽  
Abhishek Mukherjee ◽  
Michelle Povinelli
Keyword(s):  
Photonic Band Gap ◽  
Period Doubling ◽  
Grating Period ◽  
Guided Mode ◽  
Electro Optic ◽  
Wavelength Emission ◽  
Spectral Splitting ◽  
Guided Mode Resonance ◽  
Photo Luminescent ◽  
Photonic Band

<p>We present a guided mode resonance grating based on the incorporation of an electro-optic material with monolayer WS<sub>2</sub>. The grating is designed to exhibit highly selective directional photo-luminescent emission. We study the effect of doubling the grating period via the introduction of an alternating index perturbation. Using numerical simulations, we show that period doubling leads to formation of a photonic band gap and spectral splitting in the absorptivity (or emissivity) spectrum. We anticipate that this effect can either be used to switch on and off the emissivity at a fixed wavelength, or toggle between single- and double-wavelength emission.</p>

scholarly journals Electrically tunable guided mode resonance grating for switchable photoluminescence

2021 ◽  
Author(s):  
Alok Ghanekar ◽  
Abhishek Mukherjee ◽  
Michelle Povinelli
Keyword(s):  
Photonic Band Gap ◽  
Period Doubling ◽  
Grating Period ◽  
Guided Mode ◽  
Electro Optic ◽  
Wavelength Emission ◽  
Spectral Splitting ◽  
Guided Mode Resonance ◽  
Photo Luminescent ◽  
Photonic Band

<p>We present a guided mode resonance grating based on the incorporation of an electro-optic material with monolayer WS<sub>2</sub>. The grating is designed to exhibit highly selective directional photo-luminescent emission. We study the effect of doubling the grating period via the introduction of an alternating index perturbation. Using numerical simulations, we show that period doubling leads to formation of a photonic band gap and spectral splitting in the absorptivity (or emissivity) spectrum. We anticipate that this effect can either be used to switch on and off the emissivity at a fixed wavelength, or toggle between single- and double-wavelength emission.</p>

scholarly journals Topological guided-mode resonances at non-Hermitian nanophotonic interfaces

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ki Young Lee ◽  
Kwang Wook Yoo ◽  
Youngsun Choi ◽  
Gunpyo Kim ◽  
Sangmo Cheon ◽  
...  
Keyword(s):  
Fundamental Study ◽  
One Dimensional ◽  
Guided Mode ◽  
Wall Structures ◽  
Potential Applications ◽  
Photonic Microstructures ◽  
Guided Mode Resonance ◽  
The One ◽  
Photonic Band ◽  
Topological Correlations

Abstract The topological properties of photonic microstructures are of great interest because of their experimental feasibility for fundamental study and potential applications. Here, we show that robust guided-mode-resonance states exist in photonic domain-wall structures whenever the complex photonic band structures involve certain topological correlations in general. Using the non-Hermitian photonic analogy of the one-dimensional Dirac equation, we derive essential conditions for photonic Jackiw-Rebbi-state resonances taking advantage of unique spatial confinement and spot-like spectral features which are remarkably robust against random parametric errors. Therefore, the proposed resonance configuration potentially provides a powerful method to create compact and stable photonic resonators for various applications in practice.

Nano-Photonic Electro-Optic Polymer Modulator based on Photonic Band Gap Engineering

2009 ◽  
Author(s):  
Xiaolong Wang ◽  
Swapnajit Chakravarty ◽  
Boem Suk Lee ◽  
Cheyun Lin ◽  
Jingdong Luo ◽  
...  
Keyword(s):  
Band Gap ◽  
Photonic Band Gap ◽  
Band Gap Engineering ◽  
Electro Optic ◽  
Photonic Band

Lightweight Torque Sensor Based on a Gradient Grating Period Guided-Mode Resonance Filter

2019 ◽  
Vol 19 (16) ◽  
pp. 6610-6617
Author(s):  
Yen-Chieh Wang ◽  
Wen-Yea Jang ◽  
Cheng-Sheng Huang
Keyword(s):  
Grating Period ◽  
Torque Sensor ◽  
Guided Mode ◽  
Guided Mode Resonance

scholarly journals A Gradient Grating Period Guided-Mode Resonance Spectrometer

2018 ◽  
Vol 10 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Hsin-Yun Hsu ◽  
Yi-Hsuan Lan ◽  
Cheng-Sheng Huang
Keyword(s):  
Grating Period ◽  
Guided Mode ◽  
Guided Mode Resonance

Investigation of the guided-mode characteristics of hollow-core photonic band-gap fibre with interstitial holes

2011 ◽  
Vol 20 (6) ◽  
pp. 064203
Author(s):  
Jin-Hui Yuan ◽  
Chong-Xiu Yu ◽  
Xin-Zhu Sang ◽  
Jin-Long Zhang ◽  
Gui-Yao Zhou ◽  
...  
Keyword(s):  
Band Gap ◽  
Photonic Band Gap ◽  
Hollow Core ◽  
Guided Mode ◽  
Mode Characteristics ◽  
Photonic Band
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