High-Repetition Rate Optical Pump–Nuclear Resonance Probe Experiments Identify Transient Molecular Vibrations after Photoexcitation of a Spin Crossover Material

2021 ◽  
Vol 12 (12) ◽  
pp. 3240-3245
Author(s):  
Sakshath Sadashivaiah ◽  
Juliusz A. Wolny ◽  
Lena Scherthan ◽  
Kevin Jenni ◽  
Andreas Omlor ◽  
...  
Keyword(s):  
Repetition Rate ◽  
Spin Crossover ◽  
High Repetition Rate ◽  
Nuclear Resonance ◽  
Molecular Vibrations ◽  
Optical Pump ◽  
High Repetition

scholarly journals High Repetition Rate, LINAC-based Nuclear Resonance Fluorescence FY 2009 Final Report

2009 ◽  
Author(s):  
Mathew Kinlaw ◽  
Scott Watson ◽  
James Johnson ◽  
Alan Hunt ◽  
Heather Seipel ◽  
...  
Keyword(s):  
Repetition Rate ◽  
High Repetition Rate ◽  
Final Report ◽  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
High Repetition ◽  
Nuclear Resonance Fluorescence

scholarly journals High Repetition Rate, LINAC-Based Nuclear Resonance Fluorescence FY 2008 Final Report

2008 ◽  
Author(s):  
Scott M Watson ◽  
Mathew T Kinlaw ◽  
James L Jones ◽  
Alan W. Hunt ◽  
Glen A. Warren
Keyword(s):  
Repetition Rate ◽  
High Repetition Rate ◽  
Final Report ◽  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
High Repetition ◽  
Nuclear Resonance Fluorescence

Ti3C2Tx nanosheets for high-repetition-rate wideband-tunable Q-switched fiber laser around 3 μm

2021 ◽  
pp. 1-1
Author(s):  
Liqiang Zhou ◽  
Chen Wei ◽  
Dongsheng Wang ◽  
Hao Chi ◽  
Le Zheng ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
High Repetition

scholarly journals Advanced Scheme to Generate MHz, Fully Coherent FEL Pulses at nm Wavelength

2021 ◽  
Vol 11 (13) ◽  
pp. 6058
Author(s):  
Georgia Paraskaki ◽  
Sven Ackermann ◽  
Bart Faatz ◽  
Gianluca Geloni ◽  
Tino Lang ◽  
...  
Keyword(s):  
Repetition Rate ◽  
High Harmonic ◽  
High Repetition Rate ◽  
Optical Cavities ◽  
Electron Bunches ◽  
High Repetition ◽  
Average Brightness ◽  
Technical Requirements ◽  
Harmonic Content ◽  
Unique Approach

Current FEL development efforts aim at improving the control of coherence at high repetition rate while keeping the wavelength tunability. Seeding schemes, like HGHG and EEHG, allow for the generation of fully coherent FEL pulses, but the powerful external seed laser required limits the repetition rate that can be achieved. In turn, this impacts the average brightness and the amount of statistics that experiments can do. In order to solve this issue, here we take a unique approach and discuss the use of one or more optical cavities to seed the electron bunches accelerated in a superconducting linac to modulate their energy. Like standard seeding schemes, the cavity is followed by a dispersive section, which manipulates the longitudinal phase space of the electron bunches, inducing longitudinal density modulations with high harmonic content that undergo the FEL process in an amplifier placed downstream. We will discuss technical requirements for implementing these setups and their operation range based on numerical simulations.

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