Title :
Temporal characterization of ultrashort pulses at the focus of a high numerical aperture objective
Author :
Fittinghoff, D.N. ; Millard, A. ; Squier, J.A. ; Muller, Mathias
Author_Institution :
Inst. for Nonlinear Sci., California Univ., San Diego, La Jolla, CA, USA
Abstract :
Summary form only given. Precise characterization of focused pulses is required to produce optimal images with multiphoton microscopes. We used collinear type II second-harmonic generation frequency-resolved optical gating (SHG FROG) to measure the pulse intensity and phase at the focus of a Zeiss CP-Achromat 100/spl times/, 1.25 NA, infinity-corrected oil objective, and accurately retrieved 20 fs pulses.
Keywords :
high-speed optical techniques; multiphoton processes; optical focusing; optical harmonic generation; optical images; optical microscopes; optical transfer function; 20 fs; BBO; BaB2O4; FROG; SHG; Zeiss CP-Achromat; collinear type II second-harmonic generation frequency-resolved optical gating; focus pulse phase; focused pulses; fs pulses; high numerical aperture objective focus; infinity-corrected oil objective; multiphoton microscopes; optimal images; pulse intensity; temporal characterization; ultrashort pulses; Focusing; Frequency measurement; H infinity control; Microscopy; Optical harmonic generation; Optical pulse generation; Optical pulses; Petroleum; Phase measurement; Pulse measurements;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-595-1
DOI :
10.1109/CLEO.1999.834509
