Time-Resolved Four-Channel Jones Matrix Measurement of Birefringent Materials Using an Ultrafast Laser

A method for ultrafast time-resolved four-channel Jones matrix measurement of birefringent materials using an ultrafast laser is investigated. This facilitated the acquisition of a four-channel angular multiplexing hologram in a single shot. The Jones matrix information of a birefringent sample was...

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Bibliographic Details
Published inMaterials Vol. 15; no. 21; p. 7813
Main Authors Cheng, Zhenjia, Zhang, Yuqin, Liu, Xuan, Guo, Chengshan, He, Changwei, Liu, Guiyuan, Song, Hongsheng
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.11.2022
MDPI
Subjects
birefringent materials
Femtosecond pulsed lasers
Holograms
Jones matrix
Lasers
Light
Liquid crystals
Measurement
Methods
Microfluidics
Microscopy
Multiplexing
Pulse duration
ultrafast laser
Ultrafast lasers
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Summary:A method for ultrafast time-resolved four-channel Jones matrix measurement of birefringent materials using an ultrafast laser is investigated. This facilitated the acquisition of a four-channel angular multiplexing hologram in a single shot. The Jones matrix information of a birefringent sample was retrieved from the spatial spectrum of a hologram. The feasibility of this approach was established by measuring the Jones matrix of starch granules in microfluidic chips and the complex amplitude distribution and phase delay distribution of liquid crystal cell at different voltages. Moreover, when the picosecond laser was switched to a femtosecond laser, ultrafast measurements were possible provided that the time interval between two detection pulses was larger than the pulse width.
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ISSN:1996-1944
1996-1944
DOI:10.3390/ma15217813