Title :
Multi-Frame Observation of a Single Femtosecond Laser Pulse Propagation Using an Echelon and Optical Polarigraphy Technique
Author :
Lihe Yan ; Xiaofang Wang ; Jinhai Si ; Pengchao He ; Feng Chen ; Jianhua Zou ; Xun Hou
Author_Institution :
Key Lab. for Phys. Electron. & Devices of the Minist. of Educ., Xi´an Jiaotong Univ., Xi´an, China
Abstract :
We developed a multiframe observation method of femtosecond laser pulse propagating in transparent medium based on optical polarigraphy technique. An echelon was introduced into the probe light and divided it into multipulses both in time and space, allowing a multiframe detection of the intense laser pulse propagating in materials. Using this method, we realized a multiframe observation of a single femtosecond laser pulse propagating in CS2 with ultrafast self-modulation such as filamentation. This imaging method has been demonstrated to be of a femtosecond time resolution and a frame rate of ~ THz.
Keywords :
diffraction gratings; optical modulation; optical pulse generation; echelon; femtosecond laser pulse propagation; filamentation; multiframe detection; multiframe observation; optical polarigraphy technique; ultrafast self-modulation; Measurement by laser beam; Nonlinear optics; Optical imaging; Optical pulses; Probes; Ultrafast optics; Kerr effect; Optical imaging; nonlinear optics; ultrafast optics;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2278883
