Displacement measurement of the depth migration of transparent cells

Makoto Yoshida, Ichirou Ishimaru, Katsumi Ishizaki, Toshiki Yasokawa, Shigeki Kuriyama, Tsutomu Masaki, Seiji Nakai, Kaoru Takegawa, Naoyuki Tanaka

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This letter reports a method for displacement measurement of the depth migration of transparent cells. This proposed optical spatial filtering method allows visualization of the transparent cells and determination of depth migration as a horizontal displacement positive or negative first order diffracted light on the detector surface. When the sample is displaced upward or downward from the focal plane, first and negative first order diffracted light form images at a different point as a light circle. The coordinates of these two light circles on the detector surface change places when the displacement of depth migration moves to the opposite direction.

Original languageEnglish
Article number241102
JournalApplied Physics Letters
Volume89
Issue number24
DOIs
Publication statusPublished - 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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