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Nishijima Lab
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A lab that uses plasmonics to study nanostructures that absorb and emit light, and optical sensors.
AboutAbout the lab
Controlling light absorption and emission with nanostructures.
The Nishijima Lab specializes in plasmonics and studies optoelectronics, nano-optical sensors, and photothermal energy conversion.
Using structures called metasurfaces, the lab studied perfect absorption of light and control of mid-infrared light emission.
Building on this technology, the lab also studied key component technologies for gas sensors that identify molecules with high sensitivity using light.
Key terms
- Plasmonics
- A technology that uses the phenomenon in which electrons in a metal resonate with light, making it possible to handle light in very small regions
- Metasurface
- A material with structures finer than the wavelength of light arranged on its surface, designed to control how light is absorbed, emitted, and propagated
- Mid-infrared
- A part of the infrared range, with longer wavelengths than visible light. Many molecules absorb light in this band, which serves as a clue for identifying them
ResearchResearch themes
The Nishijima Lab centers its research on plasmonics and studies nanostructures that absorb and emit light, as well as optical devices that use them. The lab studied structures that convert light into heat and optical sensors that identify molecules.
*Illustrative imageStructures that absorb light perfectly
Focusing on the fact that even non-reflective light absorbers produce non-negligible scattering, the lab measured this scattering experimentally. It conducted research aimed at realizing truly perfect absorption structures and photothermal conversion devices that use them.
*Illustrative imageAn "optical nose" that identifies molecules with light
The lab conducted research aimed at P-Nose, an optical molecular sensor that uses mid-infrared plasmon resonance to identify a wide variety of molecules with high sensitivity. It developed key component technologies for it, such as new alloy materials, detectors, and light sources that focus light with metalens structures.
MembersFaculty
- Associate ProfessorYoshiaki Nishijima
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: “Metasurface ( )” National Institute of Standards and Technology / Public domain (cropped)
- Structures that absorb light perfectly: “Ultraviolet light bulb 2” Anakin101 / Public domain (cropped)
- An "optical nose" that identifies molecules with light: “Light spectrum on a wall caused by sunlight going through prism and then handmade glass” Pittigrilli / CC BY-SA 4.0 (cropped)
- Related lab (Shikata Lab): “Asymmetric encryption scheme” MarcT0K (icons by JGraph) / CC BY 4.0 (cropped)
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