Autocorrelation z-scan technique for measuring the spatial and temporal distribution of femtosecond pulses in the focal region of lenses

被引：10

作者：

Castro-Marin, P. ^{[1
]}

Castro-Olvera, G. ^{[1
]}

Garduno-Mejia, J. ^{[1
]}

Rosete-Aguilar, M. ^{[1
]}

Bruce, N. C. ^{[1
]}

Reid, D. T. ^{[2
]}

Rodriguez-Herrera, O. G. ^{[1
]}

机构：

[1] Univ Nacl Autonoma Mexico, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Av Univ 3000, Mexico City 04510, DF, Mexico

[2] Heriot Watt Univ, SUPA, Inst Photon & Quantum Sci, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland

来源：

OPTICS EXPRESS | 2017年 / 25卷 / 13期

关键词：

ULTRASHORT LIGHT-PULSES; SPHERICAL-ABERRATION; FIELD;

D O I：

10.1364/OE.25.014473

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this work we present an Autocorrelation z-scan technique to measure, simultaneously, the spatial and temporal distribution of femtosecond pulses near the focal region of lenses. A second-order collinear autocorrelator is implemented before the lens under test to estimate the pulse width. Signals are obtained by translating a Two Photon Absorption (TPA) sensor along the optical axis and by measuring the second-order autocorrelation trace at each position z. The DC signal, which is typically not considered important, is taken into account since we have found that this signal provides relevant information. Experimental results are presented for different lenses and input wavefronts. (C) 2017 Optical Society of America

引用

页码：14473 / 14482

页数：10