Diffraction image detection method of atom interferometer, atomic interferometer, atomic gyroscope

摘要

PROBLEM TO BE SOLVED: To provide a diffraction image detection technique in an atom interferometer capable of securing an atomic beam flux and observing a diffraction image well even under low-order Bragg diffraction conditions. A first step in which an atomic beam generator 100 generates an atomic beam 100a having an atomic number density distribution at a position of an observation unit 400 including a range in which the atomic beam 100a has a uniform atomic number density, and progress. In the situation where all of the light standing waves do not exist, the observation unit 400 observes the atomic line 100a from the interference unit 200 to obtain the atomic number density distribution in which the diffraction image 100c is not formed, and the traveling light. In the situation where all the standing waves are present, the observation unit 400 observes the atomic line 100a from the interference unit 200, and the diffraction image 100c under the low-order Bragg diffraction condition shows the atomic number density distribution formed within the above range. It has a third step of obtaining, and a fourth step of obtaining a diffraction image based on the difference between the atomic number density distribution obtained by the processing of the second step and the atomic number density distribution obtained by the processing of the third step. .. [Selection diagram] Fig. 2