Bibliographic Details
| Title: |
Asynchronous cross correlation autocalibration using a split-beam time-reference. |
| Authors: |
Sharp, Adam1 (AUTHOR) adam.sharp@mq.edu.au, Kitzler, Ondrej1 (AUTHOR), Fuerbach, Alex1 (AUTHOR), Spence, David J.1 (AUTHOR), Coutts, David W.1 (AUTHOR) |
| Source: |
Applied Physics B: Lasers & Optics. Dec2025, Vol. 131 Issue 12, p1-5. 5p. |
| Subjects: |
Ultrashort laser pulses, Calibration, Ultraviolet spectra, Optical measurements, Measurement, Beam splitters, Units of time, Spectrum analysis |
| Abstract: |
The characterisation technique of asynchronous cross-correlation that uses a known auxiliary reference laser to measure the duration of unknown ultrashort test laser pulses has been improved by adding a delayed copy of the reference laser pulse, creating a known time reference for autocalibration. The calibrated delay is formed by partially inserting a thin optical plate into the reference beam. This modified technique, which provides significantly higher precision than the standard asynchronous cross-correlation technique, was used to measure the duration of ultrafast pulses in the ultraviolet region at a wavelength unsuited to the use of common autocorrelation techniques. The split-beam principle can also be extended to include spectral characterisation of ultrashort pulses. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
