Terahertz emission of zinc oxide-coated silicon

Authors

  • Maria Angela B. Faustino Materials Science and Engineering Program, University of the Philippines Diliman
  • Lorenzo P. Lopez, Jr. Materials Science and Engineering Program, University of the Philippines Diliman
  • Vladimir M. Sarmiento Materials Science and Engineering Program, University of the Philippines Diliman
  • Alexander De los Reyes National Institute of Physics, University of the Philippines Diliman
  • Armando S. Somintac National Institute of Physics, University of the Philippines Diliman
  • Elmer S. Estacio National Institute of Physics, University of the Philippines Diliman

Abstract

We have shown that increasing the optical absorption of silicon via spray pyrolysis of Zinc oxide increases its terahertz emission by ~2.6 times. Results also show that aluminum doping on Zinc oxide increases its reflectivity, hence decreasing its optical absorption resulting to lower emission of terahertz radiation. The measured reflectance of the samples are 66% for the bulk Silicon, 4% for the Silicon deposited with Zinc oxide, and 57% for the aluminum-doped Zinc oxide on Silicon; corresponding to peak-to-peak terahertz time domain spectra signals of 3.86 pA, 9.985 pA, and 5 pA.

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Issue

Article ID

SPP-2016-5A-05

Section

Optics and Photonics

Published

2016-08-18

How to Cite

[1]
MAB Faustino, LP Lopez, VM Sarmiento, A De los Reyes, AS Somintac, and ES Estacio, Terahertz emission of zinc oxide-coated silicon, Proceedings of the Samahang Pisika ng Pilipinas 34, SPP-2016-5A-05 (2016). URL: https://proceedings.spp-online.org/article/view/SPP-2016-5A-05.