title: A narrow band-rejection filter based on block copolymers.
abstract: We demonstrate filtering characteristics of a polymer band-rejection filter (PBRF) with highly-ordered microphase-separated structure of block copolymers (BCPs). This PBRF 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.
authors: Central Research Laboratory, HAMAMATSU PHOTONICS K.K., 5000, Hirakuchi, Hamakita-ku, Hamamatsu, Shizuoka 434-8601, Japan. takahiko.yamanaka@crl.hpk.co.jp
authors: Takahiko
authors: T
authors: Yamanaka
authors: Shigeo
authors: S
authors: Hara
authors: Toru
authors: T
authors: Hirohata
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005374:Filtration / Q000295:instrumentation*; D008027:Light; D011108:Polymers / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation*; D012542:Scattering, Radiation; D013059:Spectrum Analysis, Raman / Q000295:instrumentation*
chemical_list: D011108:Polymers