Published December 8, 2006
| Version v1
Journal article
Multiphoton Ionization in Dielectrics: Comparison of Circular and Linear Polarization
- 1. Experimentelle Physik IIb, Universitaet Dortmund, D-44221 Dortmund (Germany)
- 2. Institut fuer Experimentelle Physik, Universitaet Duisburg-Essen, 47048 Duisburg (Germany)
Description
Ionization mechanisms in bulk dielectrics irradiated by single intense 50-fs-laser pulses are investigated by ultrafast time-resolved imaging interferometry. Polarization-sensitive 6-photon ionization is shown to be the dominant ionization mechanism in fused silica and sapphire at intensities around 10 TW/cm2. For both materials the cross sections of 6-photon ionization are found to be significantly higher for linear polarization than for circular. Our experimental results corroborate an earlier theoretical prediction on the dominance of linear polarization in high-order multiphoton ionization
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 97
- Journal Issue
- 23
- Journal Page Range
- p. 237403-237403.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38024423
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- CROSS SECTIONS; DIELECTRIC MATERIALS; INTERFEROMETRY; LASERS; PHOTOIONIZATION; POLARIZATION; PULSES; SAPPHIRE; SILICA; TIME RESOLUTION
- Descriptors DEC
- CORUNDUM; IONIZATION; MATERIALS; MINERALS; OXIDE MINERALS; RESOLUTION; TIMING PROPERTIES
Optional Information
- Notes
- (c) 2006 The American Physical Society