Free electron laser (FEL (KU-FEL))

Model

FEL（KU-FEL）

Manufacturer

⼤電⼒⾼周波増幅器（⽇新電気、NKM-150K、NKM250K）、熱陰極型⾼周波電⼦銃(AET、GP-500)

Specification

ree electron lasers use light emitted by an electron beam accelerated to near the speed of light in a vacuum. Generally, it has the characteristic of producing high-intensity monochromatic light with a continuously variable wavelength.The Institute of Advanced Energy uses an electron source called a hot cathode high-frequency electron gun to generate electron beams, aiming to create a small, high-performance device that can be used in a laboratory.For the first time in the world, we overcame the problem of operational instability with this method by precisely controlling the high-frequency power input to the electron gun, and in 2008 we succeeded in oscillating a laser at a wavelength of 12.4 μm.As of January 2020, we provide wavelength-tunable and powerful laser light in the mid-infrared region of 3.4 to 26 μm for joint research.The mid-infrared region, which this device can generate, contains many vibrational excitation levels for molecules, so the mid-infrared region is also called the molecular fingerprint region.It is possible to conduct selective excitation experiments by adjusting the laser wavelength to the vibrational excitation level of molecules. Pump-probe experiments can also be performed with free electron lasers and synchronized nanosecond and picosecond Nd: YAG lasers.It is also possible to carry out experiments to investigate the emission of light from crystalline materials when hit by electron beam irradiation (maximum energy 40 MeV) or a single high-energy (2-40 MeV) electron using an electron accelerator for free electron laser generation.

Location

Institute of Advanced Energy North Building 4

Installation Year

2000

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Overview

ree electron lasers use light emitted by an electron beam accelerated to near the speed of light in a vacuum. Generally, it has the characteristic of producing high-intensity monochromatic light with a continuously variable wavelength.
The Institute of Advanced Energy uses an electron source called a hot cathode high-frequency electron gun to generate electron beams, aiming to create a small, high-performance device that can be used in a laboratory.
For the first time in the world, we overcame the problem of operational instability with this method by precisely controlling the high-frequency power input to the electron gun, and in 2008 we succeeded in oscillating a laser at a wavelength of 12.4 μm.
As of January 2020, we provide wavelength-tunable and powerful laser light in the mid-infrared region of 3.4 to 26 μm for joint research.
The mid-infrared region, which this device can generate, contains many vibrational excitation levels for molecules, so the mid-infrared region is also called the molecular fingerprint region.
It is possible to conduct selective excitation experiments by adjusting the laser wavelength to the vibrational excitation level of molecules. Pump-probe experiments can also be performed with free electron lasers and synchronized nanosecond and picosecond Nd: YAG lasers.
It is also possible to carry out experiments to investigate the emission of light from crystalline materials when hit by electron beam irradiation (maximum energy 40 MeV) or a single high-energy (2-40 MeV) electron using an electron accelerator for free electron laser generation.

Responsible department

Installation Location 57 North Building 4

Available Users

Kyoto University,Other Research,Companies, etc. Institutes,Collaborative investigation

Notes

設備を利用しようとする者(以下「申請者」という。)は、設備を利用しようとする日(複数日に連続してまたがる場合はその最初の日)の1年前から7日前までに、京都大学エネルギー理工学研究所設備利用申込書(様式1)(以下「設備利用申込書」という。)を所長に提出し、許可を受けなければならない。

Usage rules

The Joint Usage/Research Center for Zero Emission Energy Research
※ For details on how to apply, please refer to the device’s website.
http://www.iae.kyoto-u.ac.jp/zero_emission/summary/application.html

Inquiries

Advanced Energy Generation Division Quantum Radiation Energy Research Section（Contact:Zen）
TEL
0774-38-3424
MAIL
zen*iae.kyoto-u.ac.jp
※Please change 「*」 to 「@」 and send.

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