Frequency and duty cycle modulation optimization in minimizing thermal accumulation effect in Z-scan measurement with high-repetition-rate laser

• Main Authors: Zainal Abidin, Mohd Shahnan, Muhammad Noor, Ahmad Shukri, Abdul Rashid, Suraya, Mahdi, Mohd Adzir
• Format: Article
• Language: English
• Published: Japan Society of Applied Physics 2014
• Online Access: http://psasir.upm.edu.my/id/eprint/37717/1/Frequency%20and%20duty%20cycle%20modulation%20optimization%20in%20minimizing%20thermal%20accumulation%20effect%20in%20Z.pdf; http://psasir.upm.edu.my/id/eprint/37717/

In this study, we demonstrate the optimization of the chopper frequency and duty cycle in a Z-scan measurement with a 250 MHz high-repetition-rate (HRR) femtosecond laser to minimize the thermal lensing effect due to cumulative heating of the sample. The result shows that such minimization can be ac...