公开(公告)号：US10337928B2

公开(公告)日：2019-07-02

申请号：US15754377

申请日：2016-08-24

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Haruyasu Ito ,  Yasunori Igasaki ,  Junji Okuma

IPC: G02F1/37 ,  G01J11/00

Abstract: An autocorrelation measurement device includes a first reflection member, a second reflection member, a focusing unit, a nonlinear optical crystal, a detection unit, a filter, an aperture, a delay adjusting unit, and an analysis unit. Incident pulsed light is transmitted through the second reflection member and incident on the first reflection member. First pulsed light reflected on a first reflection surface of the first reflection member and a second reflection surface of the second reflection member and second pulsed light reflected on a second reflection surface of the first reflection member and a first reflection surface of the second reflection member are incident on the nonlinear optical crystal via the focusing unit. Second harmonic light generated in the nonlinear optical crystal is detected by the detection unit.

公开(公告)号：US10260987B2

公开(公告)日：2019-04-16

申请号：US15329377

申请日：2015-07-29

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Junji Okuma ,  Yasunori Igasaki

IPC: G01J9/02 ,  G01M11/00

Abstract: A first reflection member, when light is incident, reflects a part of the light by a first reflection surface, reflects light transmitted through the first reflection surface by a second reflection surface, and emits reflected light components in an opposite direction. The second reflection member, when light emitted from the first reflection member is incident, reflects a part of the light by a first reflection surface, reflects light transmitted through the first reflection surface by a second reflection surface, and emits reflected light components. Interference fringes are formed on a screen by light reflected on the first reflection surface of the first reflection member and the second reflection surface of the second reflection member and light reflected on the second reflection surface of the first reflection member and the first reflection surface of the second reflection member.