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Wang Lab
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The lab applies nanoscale fine structures to optical and energy devices.
AboutAbout the lab
Harnessing light and energy with fine structures.
The lab fabricates micro- and nanometer-scale structures and uses them in energy conversion and optical devices.
By advancing microfabrication technology, it designs and creates structures that interact strongly with their surrounding environment.
For example, efficiently adsorbing water molecules from the air onto a material with fine pores can be used for cooling.
The strong interaction between metal structures and light can be used in highly sensitive sensors for medical and biological applications, and in ultrafast switches for optical communications.
Key terms
- Plasmon
- A phenomenon in which electrons in a metal oscillate together with light. It can confine light to a region much smaller than its wavelength.
- Thermal emission
- A phenomenon in which a heated object emits light (mainly infrared) according to its temperature.
- Photoelectrode
- An electrode that triggers an electrochemical reaction when light shines on it. It is used in research on splitting water with sunlight, among other things.
ResearchResearch themes
The lab fabricates micro- and nanostructures and uses them in energy conversion devices and in optical devices with dimensions smaller than the wavelength of light. By advancing microfabrication technology, it designs and creates micro- and nanostructures that interact strongly with their surrounding environment.
*Illustrative imageA tiny laser built directly on a chip
Using plasmons, which arise from the interaction between metal and light, the lab has realized a very small ultraviolet laser that can be fabricated directly on a photonic circuit chip. No transfer to the chip or alignment steps are required.
*Illustrative imageThermal emission at a chosen infrared wavelength
Using a structure that combines a resonator that confines light with a metal mirror and other elements, the lab has made a thermal emitter that, when heated, strongly emits only infrared light of a specific wavelength. It is suited to applications that need a narrow-band infrared light source.
*Illustrative imageSplitting water with sunlight
Using copper oxide (Cu2O) as a photoelectrode for splitting water with sunlight, the lab investigated the role of the thin layers stacked on top of it. The results show that the choice of layers can increase both voltage and current.
*Illustrative imageSensors that confine light in nanocavities
The lab strongly confined light in deep, vertically elongated U-shaped metal nanocavities and created a reflectance dip that is sensitive to changes in the surroundings. It has shown that this can be used to detect proteins and ligands.
MembersFaculty
The members of the Wang Lab consist of faculty, and doctoral, master's, and undergraduate students.
- Associate Professorドロネー ジャン・
ジャック - Assistant ProfessorZhiyu WangPublications ↗
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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: “Fluorescence in calcite” Jan Pavelka / CC BY-SA 4.0 (cropped)
- A tiny laser built directly on a chip: “Lasers” 彭嘉傑 / CC BY 2.5 (cropped)
- Thermal emission at a chosen infrared wavelength: “Large meta SEM” Nanoink1 / CC BY-SA 3.0 (cropped)
- Splitting water with sunlight: “Cuprite crystal” Masha Milshina / CC BY 4.0 (cropped)
- Sensors that confine light in nanocavities: “Nanoscale Plasmonic Resonator Structures ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Oana Lab): “Lab on a Chip ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (Oshima Lab): “PIV analysis of a stalled flat plate” Willa / CC BY-SA 3.0 (cropped)
- Related lab (Ito Lab): “Femtosecond Laser and Pulse Compressor - Optics Lab - INRIM” Giorgio Brida from Torino, Italy / CC BY 2.0 (cropped)
- Related lab (Daiguji-Hsu Lab): “Hoar frost ice crystals in Tuntorp 13” W.carter / CC BY-SA 4.0 (cropped)
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