A novel notch filter based on block copolymer photonic crystal

Shigeo Hara; Takahiko Yamanaka; Toru Hirohata; Minoru Niigaki

doi:10.1117/12.903540

17 November 2011 A novel notch filter based on block copolymer photonic crystal

Shigeo Hara, Takahiko Yamanaka, Toru Hirohata, Minoru Niigaki

Proceedings Volume 8198, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration; 819803 (2011) https://doi.org/10.1117/12.903540
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

Abstract

We demonstrate filtering characteristics of a polymer notch filter (PNF) with highly-ordered microphase-separated structure of block copolymers (BCPs). This PNF is characterized by an Optical Density > 5 blocking at the center wavelength and narrow blocking full bandwidth of 8 nm. Moreover, the wavelength is easily tuned by blending two BCPs with different molecular-weight. A low frequency Raman shift of 200 cm^-1 are, in fact, detected with a sufficient resolution by using this filter in Raman spectroscopy.

Citation Download Citation

Shigeo Hara, Takahiko Yamanaka, Toru Hirohata, and Minoru Niigaki "A novel notch filter based on block copolymer photonic crystal", Proc. SPIE 8198, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Integration, 819803 (17 November 2011); https://doi.org/10.1117/12.903540

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