Abstract
Excess photon detachment (EPD) occurs when an electron is released from a negative ion with an energy corresponding to the absorption of more photons than the minimum number needed for detachment. This paper is a study of the EPD of the simplest two-electron atom, the negative hydrogen ion, with photons of energy 1.17 eV. Because the outer electron of H- has a binding energy of 0.75 eV, one photon already provides an excess energy of 0.42 eV to the photoelectron after detachment. The time of flight (TOF) spectrum can be interpreted as an EPD spectrum with photoelectron peaks corresponding to single- and two-photon absorption.
| Original language | English |
|---|---|
| Pages (from-to) | 236-237 |
| Number of pages | 2 |
| Journal | Conference on Quantum Electronics and Laser Science (QELS) - Technical Digest Series |
| Volume | 9 |
| State | Published - Jan 1 1996 |
| Event | Proceedings of the 1996 6th Quantum Electronics and Laser Science Conference, QELS - Anaheim, CA, USA Duration: Jun 2 1996 → Jun 7 1996 |