PROBLEM TO BE SOLVED: To provide a system for selectively irradiating in high energy efficiency, specific circularly polarized light to an object.SOLUTION: A system for selectively irradiating specific circularly polarized light to an object includes a polarized light state control member 4 which controls the polarized light state of light to produce circularly polarized light, and a circularly polarized light reflecting member 2. In the system, the circularly polarized light reflecting member 2 is arranged on a position allowing circularly polarized light emitting from the polarized light state control member 4 to be incident； the circularly polarized light reflecting member 2 produces reflected light selectively including circularly polarized light of the same sense as that of incident circularly polarized light from the polarized light state control member 4, and the circularly polarized light reflecting member 2 is arranged so as to irradiate at least part of reflected light to an object.【課題】対象物に特定の円偏光を選択的にエネルギー効率よく照射するためのシステムを提供する。【解決手段】対象物に特定の円偏光を選択的に照射するためのシステムであって、光の偏光状態を制御して円偏光を生じさせる偏光状態制御部材４と、円偏光反射部材２とを含み、円偏光反射部材２は、偏光状態制御部材４から出射する円偏光が入射できる位置に配置されており、円偏光反射部材２は、入射した偏光状態制御部材４からの円偏光と同一のセンスの円偏光を選択的に含む反射光を生じさせ、円偏光反射部材２は、反射光の少なくとも一部を対象物に照射できるように配置されているシステム。【選択図】図１
