Photonic crystal heterostructures from self-assembled opals

Khokhar, A.Z., Rahman, F. and Johnson, N.P. (2011) Photonic crystal heterostructures from self-assembled opals. Applied Physics A: Materials Science and Processing, 102(2), pp. 281-287. (doi: 10.1007/s00339-010-6145-7)

Abstract

This paper describes the fabrication of opal-based photonic crystal heterostructures. These heterostructures were created by using multilayer deposition of silica and polystyrene spheres. The fabricated structures involved both different lattice constants and different dielectric constants. Single and double heterostructures working in the visible region were fabricated by using techniques described here. The optical properties of these heterostructures were investigated experimentally and showed the superposition of the properties of each individual crystal region as well as optical signatures due to inter-layer defects.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Johnson, Dr Nigel and Khokhar, Dr Ali and Rahman, Dr Faiz
• Authors: Khokhar, A.Z., Rahman, F., and Johnson, N.P.
• Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering; Q Science > QD Chemistry; Q Science > QC Physics
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Applied Physics A: Materials Science and Processing
• Journal Abbr.: Appl. Phys. A
• ISSN: 0947-8396
• ISSN (Online): 1432-0630
• Published Online: 04 December 2010