Threshold photoelectron spectroscopy

B. Zero Kinetic Energy Threshold Photoelectron Spectroscopy and... 

Fig. 11.19 Cross sections for Rydberg electron, Rb nd ( ), Rb ns (x) (ref. 84), Xe nf ( ) (ref. 85), and free-electron (A) (ref. 88) attachment to SF6. The solid lines show the theoretical result of Klots (ref. 86) and the results of threshold photoelectron spectroscopy by electron attachment(TPSA) studies (ref. 87) (from ref. 84).

TPEPICO threshold photoelectron-photoion coincidence TPES threshold photoelectron spectroscopy... 

E.R. Grant, M.G. White, ZEKE threshold photoelectron spectroscopy. Nature 354, 249 (1991) ... 

Threshold photoelectron spectroscopy (TPES) was developed to overcome the inherent limitations in the... 

For photon energies slightly above the threshold of an ionic eigenstate, threshold photoelectrons are formed and the technique is called threshold photoelectron spectroscopy. 

Much higher resolution is achievable using threshold photoelectron spectroscopy (TPES). As noted in Chapter 9, the most widely used and successful (laser-based) TPES technique is generally referred to as ZEKE (zero kinetic energy) photoelectron spectroscopy (MuUer-Dethlefs and Schlag, 1998). The resolution achievable with this technique is limited only by the bandwidth of the laser used, and this is typically 0.2 cm or, in the most favourable case, 0.001 cm . ... 

As described above, conventional photoelectron spectrometers operate at fixed photon energy while the electron energy is scanned. If a continuous light source is available the photon energy may be scanned while electrons of essentially zero kinetic energy, called threshold electrons, are detected. This is the operational principle of threshold photoelectron spectroscopy (TPES). Threshold electron detection... 

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