| 摘要 |
PROBLEM TO BE SOLVED: To generate an interference pattern having a large intensity difference in an interferometer using an electromagnetic wave.SOLUTION: An interferometer comprises: a first grating having a periodic pattern for modulating a phase of an electromagnetic wave radiated on an object; a second grating having a periodic pattern for modulating the phase of the electromagnetic wave transmitted by the first grating; and a detector detecting an intensity distribution of the electromagnetic wave transmitted by the second grating. The second grating is disposed in front of or outside of a position at which a self-figure is generated by the first grating, and a distance from the second grating to the detector is equal to or larger than 1.0 m. |
