HIGH-RESOLUTION PHOTOELECTRON SPECTROSCOPY BY SPECTRAL PHASE STEP MODULATION

2013 ◽  
Vol 22 (04) ◽  
pp. 1350045
Author(s):  
YUNXIA HUANG ◽  
SHUWU XU ◽  
XIAOHUA YANG

Femtosecond-induced resonance-enhanced multi-photon ionization photoelectron spectroscopy (REMPI-PES) has the drawback of low spectral resolution due to broadband spectrum of the laser. In this paper, we theoretically demonstrate that high-resolution REMPI-PES can be achieved by shaping the femtosecond laser pulse with spectral phase step modulation. Our results show that, by manipulating the phase step position and the modulation depth, a narrowband peak or hole in the photoelectron spectrum can be observed, and the position of the narrowband peak or hole is correlated with the eigenenergy of the excite state. Therefore, both high-resolution REMPI-PES and the excited state structure can be obtained by observing the narrowband peaks or holes.

RSC Advances ◽  
2013 ◽  
Vol 3 (30) ◽  
pp. 12185 ◽  
Author(s):  
Shian Zhang ◽  
Jichun Zhu ◽  
Chenhui Lu ◽  
Tianqing Jia ◽  
Jianrong Qiu ◽  
...  

2004 ◽  
Vol 82 (6) ◽  
pp. 1061-1066 ◽  
Author(s):  
Andrew J Yencha ◽  
Richard I Hall ◽  
Lorenzo Avaldi ◽  
Grant Dawber ◽  
Andrew G McConkey ◽  
...  

The threshold photoelectron spectrum of benzene has been recorded up to 26.5 eV photon energy under high-resolution conditions using synchrotron radiation and employing the penetrating-field threshold electron collection method. By means of a direct comparative study with a recent HeI photoelectron spectrum of benzene of equally high resolution, numerous autoionization effects are observed in the formation of the ionic band systems of benzene in the outer valence ionization region in the threshold photoelectron spectrum. The Rydberg states responsible for these effects are identified. Autoionization does not appear to play a role in the formation of the two lowest-energy, inner-valence bands of C6H6+.Key words: threshold photoelectron spectroscopy, photoelectron spectroscopy, benzene, ionization, autoionization, Rydberg states.


2020 ◽  
Vol 153 (24) ◽  
pp. 244308
Author(s):  
Ali Abou Taka ◽  
Mark C. Babin ◽  
Xianghai Sheng ◽  
Jessalyn A. DeVine ◽  
Daniel M. Neumark ◽  
...  

1996 ◽  
Vol 89 (2) ◽  
pp. 505-514 ◽  
Author(s):  
J. E. MATHIS ◽  
R. N. COMPTON ◽  
D. C. BOYLES ◽  
R. M. PAGNI

1984 ◽  
Vol 17 (8) ◽  
pp. L259-L264 ◽  
Author(s):  
B Wannberg ◽  
H Veenhuizen ◽  
L Mattsson ◽  
K -E Norell ◽  
L Karlsson ◽  
...  

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