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Niikura Lab
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A lab that captures the motion of electrons with attosecond lasers.
AboutAbout the lab
Seeing electrons and molecules through attosecond science
Niikura Lab uses lasers that emit light for an extremely short time to measure ultrafast changes in atoms and molecules.
One attosecond is 10⁻¹⁸ seconds. Being able to resolve times this short makes it possible to follow the motion of electrons, which is faster than the changes in molecular shape.
The measurements use high-intensity ultrashort laser pulses and attosecond laser pulses in the extreme ultraviolet range (high harmonic generation).
The aim is to capture changes in the structure and in the electronic states of atoms and molecules.
Key terms
- Attosecond
- 10⁻¹⁸ seconds. The length of time obtained by dividing one second by one billion, and then by one billion again
- High harmonic generation
- A method of producing extreme ultraviolet light with a very short wavelength, used to obtain attosecond pulses
- Wave function
- A wave that describes the state of an electron or other particle in quantum mechanics. It gives the probability of where the electron is likely to be found
NewsLab news
View More ↗ResearchResearch themes
The lab aims to measure ultrafast structural changes and changes in electronic states of atoms and molecules, using high-intensity ultrashort laser pulses and extreme-ultraviolet attosecond laser pulses (high harmonic generation). With attosecond time resolution, it becomes possible to measure even electron dynamics, which are faster than the time molecules take to change their structure.
*Illustrative imageAttosecond lasers
Extreme-ultraviolet attosecond laser pulses (high harmonic generation) are used for the measurements. One attosecond is 10⁻¹⁸ seconds, an extremely short time.
*Illustrative imageAtomic and molecular optics
The aim is to measure ultrafast structural changes and changes in electronic states that occur in atoms and molecules.
*Illustrative imageHigh-intensity laser physics
The measurements use high-intensity ultrashort laser pulses. The lab studies how atoms and molecules behave in the light of a strong laser.
*Illustrative imageWave function imaging
With attosecond time resolution, electron dynamics can be measured on timescales shorter than those over which molecules change their structure. The lab aims to capture changes in the state of the electrons themselves.
MembersFaculty
- ProfessorHiromichi Niikura
VoicesStudent voices
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Write a lab reviewAnonymous · Your draft is saved if you stopRelatedLabs similar to Niikura Lab
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Tabe LabSchool of Advanced Science and Engineering, Department of Applied PhysicsSoft matter physicsThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Ti Sapph YAG supercontinnum” Neath g / CC BY-SA 4.0 (cropped)
- Attosecond lasers: “ODIN Ti-Sapphire laser in operation” FDominec / CC BY-SA 3.0 (cropped)
- Atomic and molecular optics: “Angeregtes Helium 3” Alicepublic / CC BY-SA 4.0 (cropped)
- High-intensity laser physics: “NIF Laser Bay” Lawrence Livermore National Laboratory, Lawrence Livermore National Security, LLC, and the Department of Energy / Public domain (cropped)
- Wave function imaging: “Double slit interference” Aleksandr Berdnikov / CC BY-SA 4.0 (cropped)
- Related lab (Harayama Lab): “Neighborhood of attractor of discretized Lorenz system. XYZ(9) plane” German A. Chernykh & Irina A. Chernykh / CC BY-SA 4.0 (cropped)
- Related lab (Ozawa Lab): “World First Hiperboloid structure named Shukhov Tower in Polibino” Arssenev / CC BY-SA 4.0 (cropped)
- Related lab (Mochizuki Lab): “Феррожидкость в магнитном поле” Gribkov / CC BY 4.0 (cropped)
- Related lab (Tabe Lab): “Texture in a polarizing microscope of a B7 bent-core phase of a liquid crystal” Ingo Dierking / CC BY-SA 4.0 (cropped)
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