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Optical Engineering Lab
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A lab that observes and manipulates matter with light, developing spectroscopic measurement methods themselves.
AboutAbout the lab
Revealing how matter and light interact through spectroscopy
The Optical Engineering Lab develops new spectroscopic measurement methods for investigating the interaction between matter and light.
By examining the light that matter emits, the lab can get at its essential nature, and by acting on matter with light, it can also control its state.
In particular, the lab develops new spectroscopic techniques for plasma, a state in which ions and electrons are separated from each other.
By rethinking methods from first principles rather than improving conventional ones, the lab discovers phenomena that had not been found before.
Key terms
- Plasma
- A state in which ions and electrons are separated from each other. Most of the universe, including the Sun, is in this state
- Spectroscopic measurement
- A method of investigating the properties of a target by separating light by wavelength and measuring its intensity
- Triboluminescence
- Light emission produced when a crystal is fractured
ResearchResearch themes
Building on spectroscopy, the lab pioneers measurement techniques themselves. Optical measurement is an effective means of observing targets that people and objects cannot touch directly, and the lab studies a wide range of plasma-related phenomena, from nuclear fusion to industrial discharges.
*Illustrative imageMeasuring plasma with lasers and light
The lab develops laser measurement methods for plasmas, gases, and solids, such as two-photon absorption laser-induced fluorescence spectroscopy and diode laser absorption spectroscopy.
*Illustrative imageMeasuring solids with light
The lab uses spectroscopy to measure the light emitted when crystals are fractured (triboluminescence), aiming to clarify the electrical charging and stress at the moment of fracture.
*Illustrative imageHow thin films let hydrogen through
With the aims of measuring hydrogen flow in plasma and separating hydrogen in plasma reactors, the lab seeks to clarify how PdCu thin films allow hydrogen to permeate and what their characteristics are.
*Illustrative imageShaping light emerging from waveguides
For application to small-diameter endoscopes, the lab is developing a method to control the intensity distribution of light emerging from a waveguide by compensating the phase of light traveling through a rectangular waveguide.
MembersFaculty
The members of the Optical Engineering Lab consist of faculty and doctoral, master's, and undergraduate students.
- ProfessorMasahiro Hasuo
- Associate ProfessorTaiichi Shikama
- LecturerKUZMIN Arseniy
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: “Laboratorio de Láseres y Espectroscopía” Medios Digitales / CC BY-SA 4.0 (cropped)
- Measuring plasma with lasers and light: “Electric glow discharge schematic” Original: Wikigian Vector: Esmu Igors / CC BY 2.5 (cropped)
- Measuring solids with light: “Cu(NCS)(py)2(PPh3) (365 nm) (2)” Leiem / CC BY 4.0 (cropped)
- How thin films let hydrogen through: “Palladium 1-noReflection” Materialscientist (talk) / CC BY-SA 3.0 (cropped)
- Shaping light emerging from waveguides: “Arrayed-Waveguide-Grating” Dr. Schorsch / CC BY-SA 3.0 (cropped)
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