SATURABLE ABSORBING ELEMENT, SATURABLE ABSORBING ELEMENT PRODUCING METHOD, AND LASER APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a saturable absorbing element having a wide absorption band, a high light absorbance, and a high modulation depth. ! SOLUTION: A saturable absorbing element producing method includes: a step of forming carbon nanowalls 12 on a substrate 10; a step of embedding the substrate 10 on which the carbon nanowalls 12 are formed with resin 14; a step of releasing the substrate 10 from the resin 14 with which the substrate 10 is embedded after embedding the carbon nanowalls 12 on the substrate 10; and a step of removing graphite 11 on bottoms of the carbon nanowalls 12 formed at a time of forming the carbon nanowalls 12 on the substrate 10. ! COPYRIGHT: (C)2015,JPO&INPIT