Application of pressure to shift the bandgap in polystyrene-based photonic crystals

Nigel P. Johnson; Ali Z. Khokhar; Martyn A. McLachlan; David W. McComb; Richard M. De La Rue

doi:10.1117/12.546533

15 September 2004 Application of pressure to shift the bandgap in polystyrene-based photonic crystals

Nigel P. Johnson, Ali Z. Khokhar, Martyn A. McLachlan, David W. McComb, Richard M. De La Rue

Proceedings Volume 5450, Photonic Crystal Materials and Nanostructures; (2004) https://doi.org/10.1117/12.546533
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

We describe a simple technique for the selective area modification of the bandgap in planar 3-D photonic crystals (PhC). The PhCs are grown by controlled drying of monosized polystyrene spheres. Uniaxial pressure of 41 MPa can produce a shift in the bandgap of ~90 nm from 230 nm spheres. An unexpected broadening of the bandgap is attributed to the change in topology associated with large necks formed between spheres at pressures greater than 10 MPa.

Citation Download Citation

Nigel P. Johnson, Ali Z. Khokhar, Martyn A. McLachlan, David W. McComb, and Richard M. De La Rue "Application of pressure to shift the bandgap in polystyrene-based photonic crystals", Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); https://doi.org/10.1117/12.546533

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