| 摘要 |
PURPOSE:To provide the light absorber having excellent absorbance. CONSTITUTION:This light absorber 2 is constituted of the assemblage of Fe crystals each having a body centered cubic structure. The assemblage includes {222} oriented Fe crystals 41, the {222} faces of which in Miller indices are directed to a photoirradiation surface 3 side and the presence rates of the {222} oriented Fe crystals 41 is S>=40%. The {222} oriented Fe crystals 41 constitute a triangular cone shape on the photoirradiation surface 3. The absorption of light L by the slopes of these many Fe crystals 41 as well as the incidence and reflection of the light L from one slope to the other slope are repeated and, therefore, the absorbance is improved. |
