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Serita Lab
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The lab works to make terahertz waves easier to use in everyday life.
AboutAbout the lab
Seeing inside objects with waves between radio and light
The Serita Lab studies sensing and system development using terahertz waves.
Terahertz waves are electromagnetic waves located exactly between radio waves and visible light.
Like radio waves, they pass through many kinds of materials, and like light, they can be focused with lenses, so they make it possible to examine the inside of an object without damaging it.
The lab develops highly sensitive, compact systems and sensors using extremely small point light sources, which are created by converting the wavelength of light into terahertz waves.
Key terms
- Terahertz waves
- Electromagnetic waves between radio waves and light. They pass through objects and can also be focused with lenses
- Non-destructive testing
- Examining the internal condition or defects of an object without breaking or damaging it
- Metamaterial
- A material in which fine structures are artificially arranged to create responses to light and radio waves that do not exist in natural materials
NewsLab news
A review paper by Associate Professor Serita and colleagues was published in Journal of Physics: Photonics
A paper from the lab was published in Journal of Applied Physics
A paper on a collaborative study involving Associate Professor Serita and colleagues was published in Matter
Students from the lab received the Best Poster Award and the Poster Encouragement Award at the international conference ISIPS 2025
A research group including Associate Professor Serita announced a technique for observing the inner ear with terahertz waves
ResearchResearch themes
Aiming for a future society in which terahertz waves are easier to use in everyday life, the lab works on cutting-edge terahertz sensing and system development. The main focus is on terahertz applications that bring innovation to the biomedical and semiconductor fields.
*Illustrative imageDevelopment of Terahertz Light Sources
The lab converts the wavelength of light from a femtosecond laser into terahertz waves to create small, high-density point light sources. These sources are on the micrometer scale, two orders of magnitude smaller than the limit set by the wavelength.
*Illustrative imageTerahertz Biological Applications
At terahertz frequencies, the rotational motion of biopolymers and the vibrations between molecules can be observed. The lab uses a new terahertz microscope for examining tiny objects such as cells, and a biochemical sensor that measures trace amounts of solution with high sensitivity.
*Illustrative imageTerahertz Semiconductor Evaluation Systems
The lab studies applications for non-destructive inspection of defects in semiconductor materials, semiconductor devices, and LSIs, as well as the evaluation of their properties.
*Illustrative imageBuilding a Foundation for Terahertz Sensing
The lab combines sensing with terahertz point light sources and technologies in information, AI, and communication. It organizes image data and spectral data to build a foundation that can detect, at an early stage, changes appearing in the body and in devices.
MembersFaculty
The Serita Lab consists of faculty members, master's students, and undergraduate students in the IPS Course.As of 2026
- Associate ProfessorKazunori Serita
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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)
- Development of Terahertz Light Sources: “Japanese sparklers (senko hanabi)” Norio NAKAYAMA / CC BY-SA 2.0 (cropped)
- Terahertz Biological Applications: “Fluorescence microscopy of the oral cancer cells” Korinna / CC BY 4.0 (cropped)
- Terahertz Semiconductor Evaluation Systems: “Multicrystalline silicon wafer with thin film iridescence” Radiotrefoil / CC BY-SA 4.0 (cropped)
- Building a Foundation for Terahertz Sensing: “NOIRLab HQ Server Racks (6V6A0402-CC)” NOIRLab/NSF/AURA/T. Slovinský / CC BY 4.0 (cropped)
- Related lab (池橋研究室): “Microstructure1234” Denis Elbl, KIT / CC BY-SA 4.0 (cropped)
- Related lab (池永研究室): “CMOS image sensor chip-scale package oblique” Phiarc / CC BY-SA 4.0 (cropped)
- Related lab (硴塚研究室): “Laser diode chip” NASA
（PD NASA。 作者欄なし） / Public domain (cropped) - Related lab (木村研究室): “1645RT2U-HD” ZeptoBars / CC BY 3.0 (cropped)
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