Development of Coherent THz Radiation Source and MIR - FEL in Thailand On behalf of the PBP-CMU Linac Laboratory Team Plasma and Beam Physics (PBP) Research Facility Faculty of Science, Chiang Mai University, Thailand 1 Sakhorn Rimjeam The 9 th Asian Forum for Accelerators and Detectors (AFAD 2018) Daejeon Convention Center (DCC), Daejeon, Republic of Korea January 28-31, 2018
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Development of Coherent THz Radiation Source and MIR-FEL ... · “finger print”absorption spectra Corresponds to intermolecular vibration and rotation ... Prototype of THz Electromagnet
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Development of Coherent
THz Radiation Source and
MIR-FEL in Thailand
On behalf of the PBP-CMU Linac Laboratory Team
Plasma and Beam Physics (PBP) Research Facility
Faculty of Science, Chiang Mai University, Thailand
1
Sakhorn Rimjeam
The 9th Asian Forum for Accelerators and Detectors (AFAD 2018)
Daejeon Convention Center (DCC), Daejeon, Republic of Korea
January 28-31, 2018
2
Plasma and Beam Physics Research Facility (PBP)
Chiang Mai University, Thailand
Motivation & applications
Linac-based THz radiation source @ CMU
Generation of femtosecond electron bunches
Generation & measurement of coherent TR
Coherent THz undulator radiation
MIR free-electron lasers
Conclusion
3
Contents
Motivation & Applications
4
Applications of THz Radiation
5
THz imaging: quality inspection, security screening, medical applications etc.
Penetrate non-conducting materials e.g. clothes, wood, plastic, ceramic, paper
Blocked by metals Absorbed by water or liquid
THz Spectroscopy Chemical sensitive:
“finger print” absorption spectra Corresponds to intermolecular vibration
and rotation
Weak hydrogen bond
K.K awase, Y. Ogawa, Y. Watanabe,
Opt. Express 11 (2003) 2549.
Applications of MIR/THz Radiation
6
Respond and fingerprint spectra of biomolecules in MIR and FIR/THz frequency