Orientation-dependent multiphoton ionization in wide band gap crystals

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DOIResolve DOI: http://doi.org/10.1103/PhysRevLett.101.243001
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TypeArticle
Journal titlePhysical Review Letters
ISSN0031-9007
Volume101
Issue24
Article number243001
SubjectCrystal orientation; Crystal structure; Multiphoton processes; Oxide minerals; Photoionization; Quartz; Ultrashort pulses; Crystal quartz; Crystalline dielectrics; Direction dependences; Effective masses; Focal regions; Fs pulses; Intense femtosecond laser pulses; Local probes; Multiphoton; Multiphoton ionizations; Nonlinear absorptions; Wide bands; Pulsed laser applications
AbstractUsing different crystalline dielectrics and intense femtosecond laser pulses, we show that nonlinear absorption depends on sample orientation. This arises primarily because of the direction dependence of the effective mass of the electron. The multiphoton nature of the interaction creates a local probe that can be used anywhere in the material. We show that the structure of crystal quartz is not changed by repeated illumination of the focal region with 45 fs pulses. © 2008 The American Physical Society.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedYes
NPARC number21276187
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Record identifier7211f813-7c04-4e32-a42d-891c7373c515
Record created2015-09-28
Record modified2016-05-09
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