Fabrication and characterization of laterally - graded Distributed Bragg Reflector based on porous silicon

Authors

Maria Angela Faustino National Institute of Physics, University of the Philippines Diliman
Lorenzo Lopez National Institute of Physics, University of the Philippines Diliman
Michaelrey Cainglet National Institute of Physics, University of the Philippines Diliman
R.S. Oquias National Institute of Physics, University of the Philippines Diliman
A.I. Mabilangan National Institute of Physics, University of the Philippines Diliman
Arnel Salvador National Institute of Physics, University of the Philippines Diliman
Armando Somintac National Institute of Physics, University of the Philippines Diliman

Abstract

Laterally graded Distributed Bragg Reflector (DBR) based on porous silicon (PSi) was fabricated from 1cm x 3cm p-type silicon (100) in an HF ethanoic solution through electrochemical etching. The alternating layers were etched by varying the supplied anodic currents 15 mA and 90 mA with etch time of 42 sec. and 18 sec. respectively. Micrographs were also presented to confirm the alternating periodic layers produced as well as the lateral gradient on the substrates. The fabricated laterally graded DBR shows a maxima of reflection spectra from red to blue with maximum %reflectivities at 66.77 %, 81.16 %, 91.64 %, and 97.36 %. Simulation experiments were also presented to confirm the design of the experiment.

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Issue

2012: Proceedings of the 30th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2012-PB-4

Section

Poster Session PB

Published

2012-10-22

How to Cite

[1]

MA Faustino, L Lopez, M Cainglet, R Oquias, A Mabilangan, A Salvador, and A Somintac, Fabrication and characterization of laterally - graded Distributed Bragg Reflector based on porous silicon, Proceedings of the Samahang Pisika ng Pilipinas 30, SPP2012-PB-4 (2012). URL: https://proceedings.spp-online.org/article/view/SPP2012-PB-4.