3D holographic polymer photonic crystal for superprism application

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

doi:10.1117/12.705658

6 February 2007 3D holographic polymer photonic crystal for superprism application

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

Proceedings Volume 6480, Photonic Crystal Materials and Devices VI; 648013 (2007) https://doi.org/10.1117/12.705658
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Photonic crystal based superprism offers a new way to design new optical components for beam steering and DWDM application. 3D photonic crystals are especially attractive as they could offer more control of the light beam based on the needs. A polygonal prism based holographic fabrication method has been demonstrated for a three-dimensional face-centered-cubic (FCC)-type submicron polymer photonic crystal using SU8 as the photo-sensitive material. Therefore antivibration equipment and complicated optical alignment system are not needed and the requirement for the coherence of the laser source is relaxed compared with the traditional holographic setup. By changing the top-cut prism structure, the polarization of the laser beam, the exposure and development conditions we can achieve different kinds of triclinic or orthorhombic photonic crystals on demand. Special fabrication treatments have been introduced to ensure the survivability of the fabricated large area (cm²) nano-structures. Scanning electron microscopy and diffraction results proved the good uniformity of the fabricated structures. With the proper design of the refraction prism we have achieved a partial bandgap for S+C band (1460-1565nm) in the [111] direction. The transmission and reflection spectra obtained by Fourier transform infrared spectroscopy (FTIR) are in good agreement with simulated band structure. The superprism effects around 1550nm wavelength for the fabricated 3D polymer photonic crystal have been theoretically calculated and such effects can be used for beam steering purpose.

Citation Download Citation

Jiaqi Chen, Wei Jiang, Xiaonan Chen, Li Wang, Sasa Zhang, and Ray T. Chen "3D holographic polymer photonic crystal for superprism application", Proc. SPIE 6480, Photonic Crystal Materials and Devices VI, 648013 (6 February 2007); https://doi.org/10.1117/12.705658

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