Abstract
The transition matrix describing the interactions of an atom with a quantized optical field through quantum Volkov states is derived from the nonperturbative quantum electrodynamic scattering theory formalism for multiphoton (MPI) and above threshold (ATI) ionization. The expression includes the transition from the intermediate Volkov states. While the derivation maintains momentum and energy conservation of an electron-photon system, it gives out harmonic generation (HG) features. This yields analytical expressions for the high-order HG phenomena and offers a new perspective from the semiclassical view that the quantized field Volkov to Volkov state transition is the dominant mechanism for HG. A clear connection is also drawn between HG and ATI.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 48-49 |
| Number of pages | 2 |
| Journal | Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS |
| Volume | 1 |
| State | Published - 1998 |
| Externally published | Yes |
| Event | Proceedings of the 1998 11th Annual Meeting IEEE Lasers and Electro-Optics Society, LEOS. Part 2 (of 2) - Orlando, FL, USA Duration: Dec 1 1998 → Dec 4 1998 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering