MULTILAYER MIRROR, SPECTROSCOPIC DEVICE, AND SPECTROSCOPY METHOD FOR HIGHER HARMONICS

摘要

A multilayer mirror (2A, 2B, 2) according to the present invention has a structure in which a plurality of light element layers (21) including a first material and a plurality of heavy element layers (22) including a second material having a refractive index greater than the first material are alternately laminated, and selectively reflects light incident thereon that is within a wavelength range. In the multilayer mirror, the reflection bandwidths (W) at each incident angle are substantially identical to each other in the wavelength range.