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Holographic recording using visible‐light sensitive polymers based on cationic polycondensation
Author(s) -
Hotta Tsuyoshi,
Yamaoka Tsuguo
Publication year - 1994
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1994.220050202
Subject(s) - materials science , cationic polymerization , holography , condensation polymer , polymer , holographic data storage , visible spectrum , optics , optoelectronics , polymer chemistry , composite material , physics
Negative‐working photopolymers based on a cationic polycondensation mechanism were developed. The photopolymers are highly sensitive to 488 nm argon ion laser light, because they use a chemically amplified reaction and are not sensitive to ambient oxygen. These photopolymers are composed of a poly(p‐hydroxystyrene) matrix, a hexamethoxy methylmelamine crosslinker and a 2,4,6‐tris(trichloromethyl)‐1,3,5‐triazine–coumarin dye combination as a photo‐initiator. They exhibit 0.6 mJ/cm 2 (D 0.7 g ) sensitivity to 488 nm light, as well as a high resolution of 0.5 μm. Due to their high sensitivity and high resolution, a relief‐type hologram, larger than 50 × 50 cm, can be recorded in a short exposure time using them.