Unlock instant, AI-driven research and patent intelligence for your innovation.

A Method and System for Obtaining Dual Pulse Interval, Pulse Width and Intensity Ratio

A technology of pulse width and pulse interval, applied in instruments and other directions, can solve the problems of femtosecond laser double pulse interval, width and intensity ratio measurement, etc.

Inactive Publication Date: 2017-01-18
NANKAI UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the main purpose of the embodiments of the present invention is to provide a method and system for obtaining the femtosecond laser double pulse interval, width and intensity ratio, which can solve the problem that the femtosecond laser double pulse interval, width and intensity ratio cannot be measured. question

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Method and System for Obtaining Dual Pulse Interval, Pulse Width and Intensity Ratio
  • A Method and System for Obtaining Dual Pulse Interval, Pulse Width and Intensity Ratio
  • A Method and System for Obtaining Dual Pulse Interval, Pulse Width and Intensity Ratio

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The embodiments of the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0026] The embodiment of the present invention provides a method for obtaining the double pulse interval, pulse width and intensity ratio, figure 1 It is a schematic flow chart of a method for obtaining double pulse interval, pulse width and intensity ratio of the present invention, such as figure 1 As shown, the method includes:

[0027] Step 101, adjusting the femtosecond laser single pulse beam splitting into two pulses with femtosecond-level pulse width and pulse interval;

[0028] Specifically, the beam splitting adjustment specifically includes: performing beam splitting through a beam splitting plate or a birefringent crystal. Further, in addition to the beam splitting plate or birefringent crystal, it also includes other commonly used beam splitting devices. figure 2 is a schematic diagram of the beam splitting structu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and a system for acquiring the interval, pulse width and intensity ratio of double pulses. The method comprises the following steps: a femtosecond laser single pulse is beam-split and adjusted into two pulses with femtosecond pulse width and pulse interval; the two pulses are modulated and led into an auto-correlator to obtain the autocorrelation curves of the double pulses; and the autocorrelation curves of the double pulses are fitted to obtain the pulse interval, pulse width and intensity ratio of the double pulses. Therefore, measurement on the interval, width and intensity ratio of double femtosecond laser pulses is realized.

Description

technical field [0001] The invention relates to femtosecond laser double-pulse measurement technology, in particular to a method and system for obtaining double-pulse interval, pulse width and intensity ratio. Background technique [0002] Femtosecond laser is a kind of laser emitted in the form of pulse, the duration of which is on the order of femtoseconds. Due to the characteristics of high instantaneous power, high targeting accuracy and ultrashort pulse width, femtosecond laser is widely used in the fields of micromachining and ultrafast process detection. Among them, through the study of the ultrafast transient process of femtosecond laser double pulse pumping, many important results in the field of material structure change or energy conversion can be obtained. How to realize the real-time measurement of pulse parameters of femtosecond laser double pulse Particularly important. [0003] At present, there are mainly two methods for measuring the pulse parameters of f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01J11/00
Inventor 杨勇
Owner NANKAI UNIV