scholarly journals Photoemission Spectroscopy at Liquid Microbeams with a High Harmonics Table top Radiation Source

10.5772/25237 ◽  
2011 ◽  
Author(s):  
Bernd Abel
Keyword(s):  
Radiation Source ◽  
Photoemission Spectroscopy ◽  
High Harmonics

scholarly journals Efficient high harmonics generation by enhancement cavity driven with a post-compressed FCPA laser at 10 MHz

2018 ◽  
Vol 6 ◽  
Author(s):  
Zhigang Zhao ◽  
Akira Ozawa ◽  
Makoto Kuwata-Gonokami ◽  
Yohei Kobayashi
Keyword(s):  
Repetition Rate ◽  
Photoemission Spectroscopy ◽  
Laser Operation ◽  
Time Resolved ◽  
Nonlinear Plasma ◽  
Chirped Pulse ◽  
High Harmonics ◽  
Pulse Amplifier ◽  
Plasma Effect ◽  
Harmonics Generation

Efficient high harmonics generation (HHG) was demonstrated at 10 MHz repetition rate with an external femtosecond enhancement cavity, seeded by a ${\sim}70~\text{fs}$ post-compressed 10 MHz fiber chirped pulse amplifier (FCPA) laser. Operation lasting over 30 min with 0.1 mW outcoupled power at 149 nm was demonstrated. It was found that shorter pulse was beneficial for alleviating the nonlinear plasma effect and improving the efficiency of HHG. Low finesse cavity can relax the plasma nonlinearity clamped intra-cavity power and improve the cavity-locking stability. The pulse duration is expected to be below 100 fs for both 1040 nm and 149 nm outputs, making it ideal for applications such as time-resolved photoemission spectroscopy.

CONSTRUCTION AND TEST OF A CHANNELING-RADIATION SOURCE AT THE NEW DARMSTADT SUPERCONDUCTING ELECTRON ACCELERATOR

1987 ◽  
Vol 48 (C9) ◽  
pp. C9-95-C9-98
Author(s):  
W. LOTZ ◽  
H. GENZ ◽  
A. RICHTER ◽  
W. KNÜPFER ◽  
J. P.F. SELLSCHOP
Keyword(s):  
Radiation Source ◽  
Electron Accelerator ◽  
Channeling Radiation

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

Photoemission spectroscopy of high-Tc superconductors

1990 ◽  
Vol 160 (9) ◽  
pp. 155-176 ◽  
Author(s):  
Evgenii G. Maksimov ◽  
Sergei Yu. Savrasov
Keyword(s):  
Photoemission Spectroscopy
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