CARBON THIN FILM, MOLD FOR MOLDING OPTICAL ELEMENT, AND METHOD FOR MANUFACTURING OPTICAL ELEMENT

摘要

A ta-C thin film (1A) is formed by laminating a first unit structure (11) and a second unit structure (12) in this order on a base material (10). The first unit structure (11) has mutually different amounts of sp3 bonding in a first layer (11a) and a second layer (11b), and has mutually different amounts of sp3 bonding in the second layer (11b) and a third layer (11c). The second unit structure (12) has mutually different amounts of sp3 bonding in a first layer (12a) and a second layer (12b), and has mutually different amounts of sp3 bonding in the second layer (12b) and a third layer (12c).