Adsorption and Desorption Characteristics of Gradient Distributed Bragg Reflector Porous Silicon Layers

2013 ◽  
Vol 13 (1) ◽  
pp. 288-293 ◽  
Author(s):  
Sungyong Um ◽  
Sung Gi Lee ◽  
Hee-Gweon Woo ◽  
Sungdong Cho ◽  
Honglae Sohn
Keyword(s):  
Porous Silicon ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector ◽  
Adsorption And Desorption

Fabrication and optical characterization of a porous silicon distributed Bragg reflector

2013 ◽  
Vol 62 (1) ◽  
pp. 132-135 ◽  
Author(s):  
Bong-Ju Lee ◽  
Bomin Cho ◽  
Moonjoo Koh ◽  
Honglae Sohn ◽  
Young Chun Ko
Keyword(s):  
Porous Silicon ◽  
Optical Characterization ◽  
Bragg Reflector ◽  
Distributed Bragg Reflector

scholarly journals Optical Single Bragg Mirror Filters for Porous Silicon Multilayered Structure in Visible Wavelength Spectrum

2021 ◽  
Author(s):  
Md. Sakibul Islam
Keyword(s):  
Porous Silicon ◽  
Multilayered Structure ◽  
Bragg Reflector ◽  
Electromagnetic Spectrum ◽  
Distributed Bragg Reflector ◽  
Optical Reflectance ◽  
Bragg Mirror ◽  
Visible Wavelength ◽  
Te Mode ◽  
S Matrix

A distributed bragg reflector is designed to get an optical reflectance on visible electromagnetic spectrum i.e. ~800 nm in this work. Device is realized based on Abele’s matrix for TE mode.

scholarly journals Porous Silicon Bragg Reflector and 2D Gold-Polymer Nanograting: A Route Towards a Hybrid Optoplasmonic Platform

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 1017 ◽  
Author(s):  
Paola Pellacani ◽  
Lucia Fornasari ◽  
Chloé Rodriguez ◽  
Vicente Torres-Costa ◽  
Franco Marabelli ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Effective Means ◽  
Hybrid Structure ◽  
Morphological Characterization ◽  
Bragg Reflector ◽  
Geometrical Parameters ◽  
Distributed Bragg Reflector ◽  
Light Matter Interaction ◽  
Promising Solution ◽  
Electric Field Profile

Photonic and plasmonic systems have been intensively studied as an effective means to modify and enhance the electromagnetic field. In recent years hybrid plasmonic–photonic systems have been investigated as a promising solution for enhancing light-matter interaction. In the present work we present a hybrid structure obtained by growing a plasmonic 2D nanograting on top of a porous silicon distributed Bragg reflector. Particular attention has been devoted to the morphological characterization of these systems. Electron microscopy images allowed us to determine the geometrical parameters of the structure. The matching of the optical response of both components has been studied. Results indicate an interaction between the plasmonic and the photonic parts of the system, which results in a localization of the electric field profile.

Enhanced terahertz emission of a gallium arsenide thin film on a porous silicon distributed Bragg reflector designed at 800nm wavelength

2019 ◽  
Vol 92 ◽  
pp. 335-340
Author(s):  
Ameera Jose ◽  
Anthony Montecillo ◽  
Alexander De Los Reyes ◽  
Miguel Bacaoco ◽  
Joybelle Lopez ◽  
...  
Keyword(s):  
Thin Film ◽  
Gallium Arsenide ◽  
Porous Silicon ◽  
Bragg Reflector ◽  
Terahertz Emission ◽  
Distributed Bragg Reflector

Optically Encoded Smart Dust from DBR Porous Silicon

2006 ◽  
Vol 321-323 ◽  
pp. 53-56 ◽  
Author(s):  
Bong Ju Lee ◽  
Sung Gi Kim ◽  
Hong Lae Sohn
Keyword(s):  
Porous Silicon ◽  
Chemical Sensor ◽  
Electrochemical Etching ◽  
Silicon Film ◽  
Bragg Reflector ◽  
Organic Solution ◽  
Scanning Electron Micrograph ◽  
Distributed Bragg Reflector ◽  
Organic Vapors ◽  
Smart Dust

Distributed Bragg reflector (DBR) porous silicons exhibiting unique reflectivity were successfully obtained by an electrochemical etching of silicon wafer using square wave currents. Optically encoded smart dust which retained optical reflectivity was obtained from DBR porous silicon film in organic solution by using ultra-sono method. The size of optically encoded smart dust was measured by field emission scanning electron micrograph (FESEM) and was about 500 nm to few microns depending on the duration of sonication. Investigation for the optical characteristics of smart dust revealed that smart dust could be useful for application such as chemical sensor for detecting organic vapors.

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