Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: The 55th Symposium on Basic Science of Ceramics: Notes
Enhancement of photoluminescence of glass phosphor by nanoimprint of moth-eye structure
Kenji SHINOZAKIRyosuke KAMAKURAShunsuke MURAIToshiyuki MIHARANaoyuki KITAMURAYuki KAWACHIYAKatsuhisa TANAKATomoko AKAI
Author information
JOURNALS FREE ACCESS

Volume 125 (2017) Issue 10 Pages 766-769

Details
Download PDF (647K) Contact us
Abstract

We demonstrated that a moth-eye surface pattern on the luminous inorganic glass could enhance the photoluminescence (PL) intensity notably. A moth-eye pattern of a square array of cones at pitch of 250 nm was fabricated on Eu3+-doped MgF2–MgO–BaO–B2O3 glass by thermal nanoimprinting at 520°C. A simulation with rigorous coupled-wave analysis demonstrated that the surface structure could reduce the surface reflectance in the optical input for the excitation wavelength λ of 405 nm, i.e., −1.1% for p-polarized light, 10.6% for s-polarized light, and 4.1% for non-polarized light in total of a half round angle for the irradiation from a surface light source. The angularly dependent PL of the excitation angle on the nanoimprinted glass was measured by an excitation of UV laser diode (λ = 405 nm). The enhancements of ∼0% for p-polarized light and ∼9% for s-polarized light were observed at the incident angle = 5°.

Information related to the author
© 2017 The Ceramic Society of Japan
Previous article Next article
feedback
Top