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Micro/Nano Laser Device Lab
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A lab that explores photonics technology starting from building lasers themselves.
AboutAbout the lab
A photonics lab that builds the lasers themselves.
The Micro/Nano Laser Device Lab (Oki Lab) centers on laser research and works not only on using lasers but also on "making lasers."
The lab works on digital fabrication with computers and on building devices that can be printed or drawn on, taking advantage of the properties of polymers (plastic materials).
Its research areas also include soft optical systems based on silicone rubber, fluorescence-based detection of disease in sweet potatoes, and terahertz-wave wireless communication.
The lab holds most of its meetings remotely, and students can also learn fabrication with 3D printers and the use of AI.
Key terms
- PDMS
- Polydimethylsiloxane. A transparent, flexible silicone material
- Terahertz waves
- Radio waves that can use a wide frequency band and are considered promising for future ultra-high-speed wireless communication
- Frequency hopping
- A method that switches the frequency used for communication at high speed, hiding the signal in the frequency domain
NewsLab news
A student's paper was published in Plant Methods
Assistant Professor Mikami received the "Electronics Letters Paper Award"
A master's student received the "2025 IEEE Fukuoka Section Presentation Encouragement Award"
ResearchResearch themes
The lab centers on laser research and works not only on using lasers but also on "making lasers." It builds printable and drawable devices that take advantage of the properties of polymers, and conducts research that can contribute to light-based IoT, biochemical sensors, and more.
*Illustrative imagePrintable optical devices
The lab has proposed a soft optical system based on transparent, flexible PDMS (polydimethylsiloxane). Taking advantage of its stable optical paths and axes, the addition of optical functions by mixing and dispersing other materials, and additive manufacturing, the lab conducts research on developing printable optical devices.
*Illustrative imageDetecting sweet potato disease early
The lab is developing optical measurement technology that nondestructively detects sweet potato foot rot from the early stages of infection. It is exploring the use of UV fluorescence imaging and FTIR spectroscopy to capture differences between infected and healthy parts.
*Illustrative imagePDMS-based flexible optical functional materials
The lab aims to turn transparent, flexible PDMS into materials that control light by incorporating voids, scatterers, dyes, quantum dots, and more. Using techniques to introduce nano- to submicron-sized voids, it is working on lowering the refractive index and controlling scattering.
*Illustrative imageHigher security for terahertz wireless communication
Assistant Professor Mikami joined in fiscal 2026, adding this effort. Using 300 GHz-band terahertz waves and frequency hopping, which switches frequencies at high speed with optical technology, the lab aims for communication that is resistant to eavesdropping and jamming.
MembersFaculty
The members of the Micro/Nano Laser Device Lab consist of faculty and doctoral, master's, and undergraduate students.As of 2026
- ProfessorYuji Oki
- Assistant ProfessorYuya Mikami
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: “Laser module” 彭家杰 / CC BY-SA 3.0 (cropped)
- Printable optical devices: “OSCAL 2017 silkscreen printed materials 26” Manolis Angelakis / CC BY 4.0 (cropped)
- Detecting sweet potato disease early: “Sweet potato ceratocystis” Scot Nelson from Honolulu, USA / CC0 (cropped)
- PDMS-based flexible optical functional materials: “Silicone-3D-vdW” 作者不詳 / Public domain (cropped)
- Higher security for terahertz wireless communication: “Wi-fi router” Solijon Solayev / CC BY-SA 4.0 (cropped)
- Related lab (Circular Integrated Photonics Lab): “Inkjet-Nummerierwerk” Monster4711 / CC BY-SA 4.0 (cropped)
- Related lab (Functionality Emergence Integrated Systems Lab): “2N1307 transistor bond wires” Mister rf / CC BY-SA 4.0 (cropped)
- Related lab (Information Photonics Lab): “Photonic Spectrum prototype being tested by Autumn Siegel” Victoria Lee Croasdell / CC BY-SA 4.0 (cropped)
- Related lab (Microdevice Lab): “3x3 Quilt Packaging Chip Array” Jacksontlu / CC BY-SA 4.0 (cropped)
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