Title :
Spontaneous micro-lens formation and reduction of multiphoton ionization inside dielectrics
Author :
Gertsvolf, M. ; Grojo, D. ; Lei, S. ; Ramunno, L. ; Rayner, D.M. ; Corkum, P.B.
Abstract :
By repeated optical breakdown with focused femtosecond pulses, we decrease the refractive index of fused silica by few percent. The subsequent micro-lens formation is associated with a reduction of multiphoton absorption in all dielectrics.
Keywords :
dielectric materials; electric breakdown; high-speed optical techniques; microlenses; refractive index; silicon compounds; SiO2; dielectrics; focused femtosecond pulses; fused silica; microlens formation; multiphoton absorption; multiphoton ionization; optical breakdown; refractive index; Absorption; Dielectrics; Electric breakdown; Ionization; Optical pulses; Optical refraction; Optical variables control; Refractive index; Silicon compounds; Ultrafast optics; (190.4180) Multiphoton processes; (220.0220) Optical design and fabrication; (320.7110) Ultrafast nonlinear optics;
Conference_Titel :
Lasers and Electro-Optics, 2009 and 2009 Conference on Quantum electronics and Laser Science Conference. CLEO/QELS 2009. Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-55752-869-8
Electronic_ISBN :
978-1-55752-869-8
