scholarly journals Atomic-like high-harmonic generation from two-dimensional materials

2018 ◽  
Vol 4 (2) ◽  
pp. eaao5207 ◽  
Author(s):  
Nicolas Tancogne-Dejean ◽  
Angel Rubio
Keyword(s):  
Harmonic Generation ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Two Dimensional ◽  
Two Dimensional Materials

scholarly journals High harmonic generation in graphene–boron nitride heterostructures

2020 ◽  
Vol 8 (35) ◽  
pp. 12085-12091 ◽  
Author(s):  
Zi-Yu Chen ◽  
Rui Qin
Keyword(s):  
Boron Nitride ◽  
Harmonic Generation ◽  
Van Der Waals ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Two Dimensional ◽  
Van Der Waals Heterostructures

High harmonic generation and enhancement by tuning the interlayer separation in two-dimensional van der Waals heterostructures are investigated.

scholarly journals High-harmonic generation in one-dimensional Mott insulators

2021 ◽  
Vol 103 (3) ◽  
Author(s):  
Yuta Murakami ◽  
Shintaro Takayoshi ◽  
Akihisa Koga ◽  
Philipp Werner
Keyword(s):  
Harmonic Generation ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Mott Insulators ◽  
One Dimensional

scholarly journals Few-Cycle Infrared Pulse Evolving in FEL Oscillators and Its Application to High-Harmonic Generation for Attosecond Ultraviolet and X-ray Pulses

Atoms ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 15
Author(s):  
Ryoichi Hajima
Keyword(s):  
Harmonic Generation ◽  
Short Pulse ◽  
High Harmonic ◽  
High Harmonic Generation ◽  
Pulse Generation ◽  
Solid State Lasers ◽  
Linear Accelerators ◽  
X Ray ◽  
Ultrafast Science ◽  
Historical Remarks

Generation of few-cycle optical pulses in free-electron laser (FEL) oscillators has been experimentally demonstrated in FEL facilities based on normal-conducting and superconducting linear accelerators. Analytical and numerical studies have revealed that the few-cycle FEL lasing can be explained in the frame of superradiance, cooperative emission from self-bunched systems. In the present paper, we review historical remarks of superradiance FEL experiments in short-pulse FEL oscillators with emphasis on the few-cycle pulse generation and discuss the application of the few-cycle FEL pulses to the scheme of FEL-HHG, utilization of infrared FEL pulses to drive high-harmonic generation (HHG) from gas and solid targets. The FEL-HHG enables one to explore ultrafast science with attosecond ultraviolet and X-ray pulses with a MHz repetition rate, which is difficult with HHG driven by solid-state lasers. A research program has been launched to develop technologies for the FEL-HHG and to conduct a proof-of-concept experiment of FEL-HHG.

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