Generation of UV Signal using 1D Photonic Structure: A Proposal to Photonic Industry for Designing Laser Torch

2020 ◽  
Author(s):  
Atmabhu Das ◽  
G.R.K.D. Satya Prasad ◽  
Gopinath Palai
Keyword(s):  
Photonic Structure ◽  
Laser Torch

scholarly journals A single inverse-designed photonic structure that performs parallel computing

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Miguel Camacho ◽  
Brian Edwards ◽  
Nader Engheta
Keyword(s):  
Wave Equation ◽  
Feedback Loop ◽  
Photonic Structure ◽  
Quantum Devices ◽  
Microwave Frequencies ◽  
Parallel Solution ◽  
Design Build ◽  
Mathematical Problems ◽  
Computing Structure ◽  
Independent Integral

AbstractIn the search for improved computational capabilities, conventional microelectronic computers are facing various problems arising from the miniaturization and concentration of active electronics. Therefore, researchers have explored wave systems, such as photonic or quantum devices, for solving mathematical problems at higher speeds and larger capacities. However, previous devices have not fully exploited the linearity of the wave equation, which as we show here, allows for the simultaneous parallel solution of several independent mathematical problems within the same device. Here we demonstrate that a transmissive cavity filled with a judiciously tailored dielectric distribution and embedded in a multi-frequency feedback loop can calculate the solutions of a number of mathematical problems simultaneously. We design, build, and test a computing structure at microwave frequencies that solves two independent integral equations with any two arbitrary inputs and also provide numerical results for the calculation of the inverse of four 5 x 5 matrices.

scholarly journals Coherent characterisation of a single molecule in a photonic black box

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sebastien Boissier ◽  
Ross C. Schofield ◽  
Lin Jin ◽  
Anna Ovvyan ◽  
Salahuddin Nur ◽  
...  
Keyword(s):  
Single Molecule ◽  
Coupling Efficiency ◽  
Black Box ◽  
Measured Spectrum ◽  
Photonic Structure ◽  
Quantum Emitter ◽  
Precise Knowledge ◽  
Transmission And Reflection Spectra ◽  
Waveguide Coupling ◽  
Transmission And Reflection

AbstractExtinction spectroscopy is a powerful tool for demonstrating the coupling of a single quantum emitter to a photonic structure. However, it can be challenging in all but the simplest of geometries to deduce an accurate value of the coupling efficiency from the measured spectrum. Here we develop a theoretical framework to deduce the coupling efficiency from the measured transmission and reflection spectra without precise knowledge of the photonic environment. We then consider the case of a waveguide interrupted by a transverse cut in which an emitter is placed. We apply that theory to a silicon nitride waveguide interrupted by a gap filled with anthracene that is doped with dibenzoterrylene molecules. We describe the fabrication of these devices, and experimentally characterise the waveguide coupling of a single molecule in the gap.

Transmittance spectrum of a double-period photonic structure composed of polymer materials

Optik ◽  
2021 ◽  
pp. 166756
Author(s):  
Francis Segovia-Chaves ◽  
Herbert Vinck-Posada ◽  
Vigneswaran Dhasarathan
Keyword(s):  
Polymer Materials ◽  
Transmittance Spectrum ◽  
Photonic Structure ◽  
Double Period

Metamaterial based photonic structure: An alternate high performance antireflection coating for solar cell

Optik ◽  
2019 ◽  
Vol 179 ◽  
pp. 740-743 ◽  
Author(s):  
G. Palai ◽  
Anand Nayyar ◽  
R. Manikandan ◽  
Bhopendra Singh
Keyword(s):  
Solar Cell ◽  
High Performance ◽  
Antireflection Coating ◽  
Photonic Structure

Controlled Fabrication and Photonic Structure of Cholesteric Liquid Crystalline Shells

2014 ◽  
Vol 26 (29) ◽  
pp. 4919-4919 ◽  
Author(s):  
Yoshiaki Uchida ◽  
Yoichi Takanishi ◽  
Jun Yamamoto
Keyword(s):  
Liquid Crystalline ◽  
Photonic Structure ◽  
Cholesteric Liquid Crystalline

A proposal to identify live cancer cell by naked eye: Realization of biomedical application using 1D photonic structure

Optik ◽  
2019 ◽  
Vol 183 ◽  
pp. 818-821
Author(s):  
Iraj Sadegh Amiri ◽  
P. Yupapin ◽  
G. Palai ◽  
S.K. Tripathy
Keyword(s):  
Cancer Cell ◽  
Biomedical Application ◽  
Photonic Structure ◽  
Naked Eye ◽  
Live Cancer Cell
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