Results 71 to 80 of about 3,323 (241)

Fluidic and Polymeric Integration and Functionalization of Optical Microresonators

, 2006
Optical resonators are structures that spatially confine and temporally store light. The use of such resonators continues to permeate throughout society as improvements in their design and fabrication qualify them to fulfill an ever-increasing array of ...
Maune, Brett Michael
core   +1 more source

Low Threshold, Wide Dynamic Range, Tunable, All-Optical Self-Modulator Based on Fano Resonance and Out-of-Plane Coupling in a Slab Photonic Crystal with a Graphene Layer

Journal of Nanotechnology, 2015
We demonstrate an all-optical modulator based on self-modulation in a one-dimensional slab photonic crystal (PhC) by using optical Kerr nonlinearity of graphene and Fano resonance effect.
Reza Asadi, Zhengbiao Ouyang
doaj   +1 more source

Dual Ferro‐/Piezo‐Electric Coupling in Two‐Dimensional [Bi2O2]‐Based Layered Structures for Synergistic Harvesting of Mechanical and Solar Energy

Exploration, EarlyView.
Inter‐plane 2D/2D nanosheet heterojunction based on two piezoelectric [Bi2O2]‐based layered compounds is constructed. Significantly increased piezoelectric properties of BiOBr@Bi5Ti3FeO15 by morphological regulation and interface chemical bonds. Dual‐piezoelectric field can modulate interfacial electric field and the interfacial band bending to ...
Daotong You, Xingwang Long, Zhiyong Yang, Lei Liu, Jianbang Chen, Tuan Guo   +5 more
wiley   +1 more source

Active quasi-BIC optical vortex generators for ultrafast switching

New Journal of Physics, 2022
The Pancharatnam–Berry phase induced by the winding topology of polarization around a vortex singularity at bound states in the continuum (BIC) provides a unique approach to optical vortex (OV) generation.
Yuhao Wu, Lei Kang, Douglas H Werner
doaj   +1 more source

Lead‐free halide perovskites for efficient light‐emitting devices

FlexMat, EarlyView.
Overview of Lead‐free metal halide perovskites with different categories and optoelectronic application directions, including solid‐state lighting, light‐emitting diodes, piezoluminescence, flexible electronics, scintillators and CPL emitters. Abstract Lead halide perovskites exhibit promising optoelectronic properties for optoelectronic applications ...
Yueqi Shen, Kefan Meng, Yiqi Zhao, Chaoran Zhou, Jiaye Shu, Di Zhang, Chengqian Cao, Wanxin Chen, Yefeng Zhou, Weihua Ning   +9 more
wiley   +1 more source

Efficient single photon source based on μ-fibre-coupled tunable microcavity

, 2015
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (20070093863, 2014M3C1A3052537).Efficient and fast on-demand single photon sources have been sought after as critical components of ...
Lee, Chang-Min, Höfling, Sven, Lim, Hee-Jin, Maier, Sebastian, Schneider, C., Lee, Y.-H., Lee, C.-M., Schneider, Christian, Maier, S., Lee, Yong-Hee, Kamp, M., Kamp, Martin, Lim, H.-J.   +12 more
core   +1 more source

A Novel Method for Band Structure Analysis of Photonic Crystal Slabs

IEEE Photonics Journal, 2011
We propose a new method to extract the modes of photonic crystal slabs and, thus, obtain their band structures. These slabs, which are 2-D periodic structures with finite thickness, can completely confine light and have the important advantage of simple ...
S. A. H. Nekuee, M. Akbari, K. Mehrany
doaj   +1 more source

Optimization of resonances in photonic crystal slabs [PDF]

SPIE Proceedings, 2003
Variational methods are applied to the design of a two-dimensional lossless photonic crystal slab to optimize resonant scattering phenomena. The method is based on varying properties of the transmission coefficient that are connected to resonant behavior.
Robert P. Lipton, Stephen P. Shipman, Stephanos Venakides   +2 more
openaire   +1 more source

Crystalline–amorphous heterointerface engineering in oxygen‐vacancy‐activated BiOCl for high‐performance aqueous zinc‐ion batteries

FlexMat, EarlyView.
Oxygen vacancy engineered BiOCl with a crystalline–amorphous heterostructure, coupled with an I−/I3− ${\mathrm{I}}_{3}^{-}$ redox‐active electrolyte, enables the optimized cathode to deliver exceptional long‐term cycling stability for aqueous zinc‐ion batteries.
Longjue Hu, Sufang Chen, Daohong Zhang, Qiufan Wang   +3 more
wiley   +1 more source

Reconfigurable, Defect-Free, Ultrahigh-Q Photonic Crystal Microcavities for Sensing

Sensors, 2013
We propose a new approach for creating reconfigurable high-Q cavities in defect-free photonic crystal slabs (PCSs). The approach relies on selective air-hole infiltration in otherwise defect-free PCSs.
Snjezana Tomljenovic-Hanic, C. Martijn de Sterke   +1 more
doaj   +1 more source