On-chip light scattering imaging of the guanine platelet

A guanine platelet is a very thin optical component that plays a role in light reflection control in the narrow space within the body of a fish. However, the details of this light control mechanism have not been revealed to date. In this work, guanine micro-platelets floating in water are visualized...

Full description

Saved in:
Bibliographic Details
Published in:Japanese Journal of Applied Physics 2022-02, Vol.61 (2), p.27002
Main Author: Iwasaka, Masakazu
Format: Article
Language:English
Subjects:
guanine platelet
Light
light diffraction
Light reflection
Light scattering
on-chip imaging
Optical components
Optical microscopy
Platelets (materials)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A guanine platelet is a very thin optical component that plays a role in light reflection control in the narrow space within the body of a fish. However, the details of this light control mechanism have not been revealed to date. In this work, guanine micro-platelets floating in water are visualized via light projection near an image sensor. These guanine platelets demonstrate light scattering in specific directions. By setting a thin water layer on top of the image sensor’s cover glass, each platelet in the water layer forms column- or bar-code-shaped images on the screen. The existence of nanohole gratings in these platelets was confirmed by high-resolution optical microscopy. Numerical electromagnetic simulations indicated that the nanohole gratings contributed to the formation of unique light projection spots.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/ac439b