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Yoshioka Lab
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The lab uses physics to explore structural colors and optical ingenuity in living organisms.
AboutAbout the lab
Approaching the brilliance and ingenuity of organisms through physics
Yoshioka Lab pursues open-ended research centered on structural colors, optical adaptations, and biomimetics in living organisms.
Structural color is color produced not by absorption by pigments, but by fine structures on the scale of the wavelength of light that cause optical phenomena such as interference and scattering.
The lab's website presents examples such as nanostructures in the scales of butterfly wings that produce brilliance, and protrusions on the surface of moth compound eyes that suppress light reflection.
The website also raises familiar questions, such as why insects can walk freely on walls and ceilings.
Key terms
- Structural color
- Color produced not by pigments, but by fine structures on the scale of the wavelength of light that cause optical phenomena such as interference and scattering
- Biomimetics
- A field that learns the principles behind the ingenious features of living organisms in nature and imitates them to attempt industrial applications
ResearchResearch themes
Yoshioka Lab takes living organisms in nature as models and studies how physical laws are used to achieve their functions. It also investigates how to reproduce or surpass those functions, and what related physical phenomena are involved.
*Illustrative imageResearch on a Color-Changing Tropical Fish
This research focuses on the neon tetra, a tropical fish that changes color. The lab's website presents it as one concrete example of its research.
*Illustrative imageResearch on the Madagascan Sunset Moth
This research focuses on the Madagascan sunset moth, called the most beautiful moth in the world. It is introduced on a dedicated page as one concrete example of the lab's research.
*Illustrative imageStructural Color in Feral Pigeon Feathers
This research examines the color of feral pigeon feathers, which appear to have only two colors. It is listed as one concrete example of the lab's research, as the structural color of the feral pigeon.
*Illustrative imagePure White Stripes on Blue Wings
This research focuses on M. cypris, a species of morpho butterfly. It is introduced as an example dealing with the pure white stripes that appear on its blue wings.
MembersFaculty
Yoshioka Lab's members include faculty and master's and undergraduate students.As of 2024
- ProfessorShinya Yoshioka
- Assistant ProfessorRyosuke Ohnuki
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Morpho peleides Niagara Parks Butterfly Conservatory” The Cosmonaut / CC BY-SA 2.5 ca (cropped)
- Research on a Color-Changing Tropical Fish: “Neonsalmler Paracheirodon innesi” Holger Krisp / CC BY 3.0 (cropped)
- Research on the Madagascan Sunset Moth: “Urania moth (Urania boisduvalii)” Charles J. Sharp / CC BY-SA 4.0 (cropped)
- Structural Color in Feral Pigeon Feathers: “Urban pigeon ( )” hedera.baltica from Wrocław, Poland / CC BY-SA 2.0 (cropped)
- Pure White Stripes on Blue Wings: “Open wing basking position of Papilio arcturus Westwood, 1842 - Blue Peacock” Subhendukhan / CC BY 4.0 (cropped)
- Related lab (秋元研究室): “Set Estimation from Reflected Brownian Motion 01” MGromov / CC BY-SA 4.0 (cropped)
- Related lab (澤渡研究室): “Neel skyrmion models” Börge Göbel, Ingrid Mertig, Oleg A.Tretiakov / CC BY 4.0 (cropped)
- Related lab (石塚研究室): “CHIPS-M neutrino detector ( )” UCL Mathematical and Physical Sciences from London, UK / CC BY 2.0 (cropped)
- Related lab (鈴木研究室): “Neutron Star X-ray beaming with accretion disk” NASA / Public domain (cropped)
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