Laser pulse induced efficient terahertz emission from Co/Al heterostructures

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
Hui Zhang ◽  
Zheng Feng ◽  
Jine Zhang ◽  
He Bai ◽  
Huaiwen Yang ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Terahertz Emission

Strong terahertz emission by optical rectification of shaped laser pulse in transversely magnetized plasma

2017 ◽  
Vol 24 (7) ◽  
pp. 073114 ◽  
Author(s):  
Ram Kishor Singh ◽  
Monika Singh ◽  
Satish Kumar Rajouria ◽  
R. P. Sharma
Keyword(s):  
Laser Pulse ◽  
Magnetized Plasma ◽  
Optical Rectification ◽  
Terahertz Emission

Terahertz emission from a laser pulse with tilted front: Phase-matching versus Cherenkov effect

2008 ◽  
Vol 104 (7) ◽  
pp. 073105 ◽  
Author(s):  
M. I. Bakunov ◽  
S. B. Bodrov ◽  
M. V. Tsarev
Keyword(s):  
Laser Pulse ◽  
Phase Matching ◽  
Terahertz Emission ◽  
Cherenkov Effect

scholarly journals Universal field-tunable terahertz emission by ultrafast photoinduced demagnetization in Fe, Ni, and Co ferromagnetic films

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Lin Huang ◽  
Sang-Hyuk Lee ◽  
Seon-Dae Kim ◽  
Je-Ho Shim ◽  
Hee Jun Shin ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Magnetic Hysteresis ◽  
Hysteresis Curve ◽  
External Fields ◽  
Terahertz Emission ◽  
Emission Signal ◽  
Ferromagnetic Films ◽  
Initial Magnetization ◽  
Emission Behavior ◽  
Magnetic Hysteresis Curve

Abstract We report a universal terahertz (THz) emission behavior from simple Ni, Fe, and Co metallic ferromagnetic films, triggered by the femtosecond laser pulse and subsequent photoinduced demagnetization on an ultrafast time scale. THz emission behavior in ferromagnetic films is found to be consistent with initial magnetization states controlled by external fields, where the hysteresis of the maximal THz emission signal is observed to be well-matched with the magnetic hysteresis curve. It is experimentally demonstrated that the ultrafast THz emission by the photoinduced demagnetization is controllable in a simple way by external fields as well as pump fluences.

Propagation of picosecond Nd : glass laser pulse through molybdenum preplasma

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-567-Pr2-570
Author(s):  
T. Ozaki ◽  
K. Yamamoto ◽  
H. Kuroda
Keyword(s):  
Laser Pulse ◽  
Glass Laser
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