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Optical Functional Device Engineering Lab
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The lab aims to create the ultimate light-emitting material, one that glows efficiently in any color you choose.
AboutAbout the lab
From the interaction of light and matter to optical devices
The Optical Functional Device Engineering Lab (Funato Lab) works on the emergence and elucidation of new physical properties based on the interaction between light and matter, and on optical devices and applications of light that make use of them.
By controlling nanostructures, the lab aims to develop the ultimate light-emitting material, one that emits light in any desired color, at any desired size, and in any desired location, with 100% efficiency.
The lab also works on the fundamental optical properties and materials that underpin solid-state lighting, as well as applications in biology and medicine.
Key terms
- Nitride semiconductor
- A semiconductor containing nitrogen, such as gallium nitride. It is the material used for blue and white LEDs
- Near-field scanning optical microscope
- A special optical microscope capable of observing regions smaller than the wavelength of light
- Carrier
- The electrons and holes that carry electric current in a semiconductor
ResearchResearch themes
Centered on nitride semiconductors, the lab works on evaluating and elucidating nanoscale optical phenomena, pioneering new light-emitting materials and devices through nanostructure control, and industrial applications of high-performance optical devices.
*Illustrative imageSeeing light at the nanoscale
To directly capture and visualize, including changes over time, the behavior of carriers in nanometer-scale fluctuations in the light-emitting layers of nitride semiconductors, the lab develops microscopic optical measurement techniques such as near-field scanning optical microscopy.
*Illustrative imageTracking light emission on femtosecond timescales
Using ultrashort-pulse lasers, the lab tracks carrier behavior on femtosecond and picosecond timescales and investigates it with microscopes at the nanometer to sub-micrometer scale, aiming to develop devices with higher emission efficiency.
*Illustrative imageMulticolor emission from three-dimensional structures
By introducing three-dimensional microstructures into the light-emitting structures of nitride semiconductors, the lab seeks to create new functions such as higher emission efficiency and multicolor emission from different structures on each crystal facet.
*Illustrative imageBringing LEDs to new fields
The lab has proposed medical lighting and the illumination of cultural properties using nitride-semiconductor white LEDs. It aims to open up such unexplored fields and nurture the seeds of new industries.
MembersFaculty
The faculty of the Optical Functional Device Engineering Lab are Specially Appointed Professor Mitsuru Funato, Assistant Professor Ryota Ryota, and Specially Appointed Assistant Professor Yoshinobu Matsuda.
- Program-Specific ProfessorMitsuru Funato
- Assistant ProfessorRyota Ryota
- Program-Specific Assistant ProfessorYoshinobu Matsuda
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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: “Blue led 09 of 10” Renato.pierri / CC BY-SA 4.0 (cropped)
- Seeing light at the nanoscale: “Rastersondenmikroskop, Christine Möller SNI” Christine Möller, SNI / CC BY-SA 4.0 (cropped)
- Tracking light emission on femtosecond timescales: “Femtosecond Laser and Pulse Compressor - Optics Lab - INRIM” Giorgio Brida from Torino, Italy / CC BY 2.0 (cropped)
- Multicolor emission from three-dimensional structures: “Plessey Semiconductors Ltd GaN-on-Silicon microLED arrays on wafer” Palee93 / CC BY-SA 4.0 (cropped)
- Bringing LEDs to new fields: “Operating Room Surgical Light During Plastic Surgery Procedure” Tyler Frew MD / CC BY-SA 4.0 (cropped)
- Related lab (Nanoprocess Engineering Lab): “Microscopy Lab Tour at the Colorado School of Mines” SparkFun Electronics from Boulder, USA / CC BY 2.0 (cropped)
- Related lab (Integrated Physics and Information Engineering Lab): “Photonic-crystal-fiber-from-NRL” 作者不詳 / Public domain (cropped)
- Related lab (Device Process Engineering Lab): “Unmetallised Silicon Heterojunction solar cell precursor” Radiotrefoil / CC BY-SA 4.0 (cropped)
- Related lab (Solid-State Quantum Physics and Engineering Lab): “MTJ with Transparent Background” OJB Quantum / CC BY 4.0 (cropped)
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