Imprinting on synthetic opal by applying uniaxial pressure 21

Khokhar, A.Z., De La Rue, R.M. and Johnson, N.P. (2006) Imprinting on synthetic opal by applying uniaxial pressure 21. Micro and Nano Letters, 1(1), pp. 43-46. (doi: 10.1049/mnl:20065006)

Abstract

Polystyrene-based three-dimensionally periodic photonic crystals have been fabricated by the capillary growth method. By applying uniaxial pressure along the 〈111〉 direction of the face-centred cubic opal structure, it has been found that the photonic stopband can be shifted towards shorter wavelengths. This shift is found to be irreversible and occurs as the effective refractive index increases and the interplanar spacing decreases. Replica grating structures have also been created by applying pressure along the 〈111〉 direction. Structures replicated from one-dimensionally periodic triangular gratings with periodicities of 300 and 1200 mm 21 were imposed on the synthetic opal

• Item Type: Articles
• Keywords: Band-structure, fabrication, growth index, lithography, photonic crystal, photonic crystals, polymerization, spheres, wavelengths
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Johnson, Dr Nigel and Khokhar, Dr Ali and De La Rue, Professor Richard
• Authors: Khokhar, A.Z., De La Rue, R.M., and Johnson, N.P.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Micro and Nano Letters
• ISSN: 1750-0443