Superprism phenomena in 2 D low index contrast polymer photonic crystal

Li Wang; Wei Jiang; Xiaonan Chen; Jiaqi Chen; Sasa Zhang; Ray Chen

doi:10.1117/12.705461

7 March 2007 Superprism phenomena in 2 D low index contrast polymer photonic crystal

Li Wang, Wei Jiang, Xiaonan Chen, Jiaqi Chen, Sasa Zhang, Ray Chen

Proceedings Volume 6475, Integrated Optics: Devices, Materials, and Technologies XI; 647510 (2007) https://doi.org/10.1117/12.705461
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

An analysis of superprism effect in low index contrast polymer photonic crystal is presented. It shows extremely sensitivity to the wavelength and angle of the incident light due to the strong anisotropy of photonic band structures. Two-dimensional (2-D) polymer photonic crystals with triangular lattice structure were fabricated by soft lithography using elastomeric polydimethylsiloxane (PDMS) templates. Dense two dimensional photonic crystal superprism structures with feature sizes of 150-500nm and aspect ratios of up to 1.25 were successfully replicated by soft lithography. Large field size and easy fabrication are two major advantages when compared with other imprint technology. Atomic Force Microscopy images showed that the molded structures had high fidelity to the masters. Such an effective, low cost, and high throughput soft lithography technique could find wide use in making photonic crystal based nanostructures.

Citation Download Citation

Li Wang, Wei Jiang, Xiaonan Chen, Jiaqi Chen, Sasa Zhang, and Ray Chen "Superprism phenomena in 2 D low index contrast polymer photonic crystal", Proc. SPIE 6475, Integrated Optics: Devices, Materials, and Technologies XI, 647510 (7 March 2007); https://doi.org/10.1117/12.705461

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KEYWORDS

Photonic crystals

Polymers

Lithography

Atomic force microscopy

Dispersion

Nanostructures

Surface roughness

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