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Laser and Photonics Applications Lab
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The lab uses laser light to make things and to look inside the body.
AboutAbout the lab
Creating new value with light and lasers.
The Laser and Photonics Applications Lab conducts research to find new value in the world using light and lasers.
Lasers are a cutting-edge technology that plays a wide range of roles in fields such as communications, processing, measurement, and medicine.
Based on laser processing and nano/micro technology, the lab works on everything from light sources for manufacturing semiconductors to metal welding and devices that handle ultraviolet light.
As medical-engineering collaboration with the Department of Ophthalmology in the Faculty of Medicine, the lab is also developing techniques to measure fundus function using spectral imaging.
Key terms
- Laser processing
- A collective term for processing techniques that use laser light to cut, join, and create things
- EUV
- Extreme ultraviolet light with a wavelength of 13.5 nm. It is used as the light source in lithography systems that print cutting-edge semiconductors
- Spectral imaging
- A method that separates light by wavelength and forms images from it, revealing differences in composition that cannot be seen by eye
NewsLab news
Paper by Prof. Nakamura and colleagues published in Journal of Laser Applications
A master's student received the Outstanding Paper Presentation Award (Category B) for fiscal year 2023
ResearchResearch themes
Based on laser processing and nano/micro technology, the lab aims to find new value using light and lasers. Its work covers a wide range of targets, from light sources that support semiconductor manufacturing to high-speed metal welding, next-generation optoelectronic devices, and measurement of biological function.
*Illustrative imageExtreme Ultraviolet Light Sources for Semiconductor Manufacturing
In cutting-edge semiconductor manufacturing, extreme ultraviolet (EUV) light with a wavelength of 13.5 nm is generated from laser-produced plasma. Focusing on the challenges of higher output and longer collector mirror lifetime, the lab aims to realize a highly efficient, low-power light source that surpasses current lithography systems.
*Illustrative imageLaser Welding for Joining Copper at High Speed
High-speed welding of copper and aluminum is strongly needed in the manufacture of electrical and electronic components. In joint research with companies, the lab aims to establish a high-speed, high-quality welding method using high-power lasers in the blue wavelength range, which copper absorbs readily.
*Illustrative imageProcessing by Controlling Polarization and Phase
Controlling the polarization and phase of laser light produces processing phenomena that cannot be obtained with a basic laser beam. In joint research with Kochi University of Technology, the lab is developing new laser processing that makes full use of polarization, phase, and waveform in addition to wavelength and power.
*Illustrative imageUltraviolet Light Sources Made from Zinc Oxide
The lab fabricates nanocrystals of zinc oxide (ZnO), a material attracting attention as a highly efficient ultraviolet-emitting material with low environmental impact, using catalyst-free nanoparticle-assisted laser deposition. The lab is exploring applications to UV sensors, ultraviolet LEDs, and ultraviolet laser diodes.
MembersFaculty
The members of the Laser and Photonics Applications Lab consist of faculty, technical staff, and doctoral, master's, and undergraduate students.
- ProfessorDaisuke Nakamura
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: “OPA produced femtosecond UV laser beam” Abdullahkepceoglu / CC BY-SA 4.0 (cropped)
- Extreme Ultraviolet Light Sources for Semiconductor Manufacturing: “Sun - August 1, 2010” NASA/SDO/AIA / Public domain (cropped)
- Laser Welding for Joining Copper at High Speed: “In-stream inoculation addition while molten cast iron is poured to a green sand mold in a foundry in Bangladesh” Sm faysal / CC BY-SA 4.0 (cropped)
- Processing by Controlling Polarization and Phase: “BiodegradablePlasticUtensils2” Scott Bauer / Public domain (cropped)
- Ultraviolet Light Sources Made from Zinc Oxide: “Fluorescein in ammonia solution (Part 13)” RaúlCHTRY / CC BY-SA 4.0 (cropped)
- Related lab (マイクロ・ナノレーザーデバイス研究室): “Lasers” 彭嘉傑 / CC BY 2.5 (cropped)
- Related lab (集積磁気デバイス研究室): “2019 Rozebrane dyski twarde” Jacek Halicki / CC BY-SA 4.0 (cropped)
- Related lab (量子デバイス工学研究室): “Gold Cryostat 8K-4” Onri Jay Benally / CC BY-SA 2.0 (cropped)
- Related lab (人間情報科学研究室): “Bare chest of a old man for ECG with probes (36506)” Suyash.dwivedi / CC BY-SA 4.0 (cropped)
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