Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser

Nonlinear optical properties of 2- (2-hydroxyethyl)-6-(morpholin-4-yl) -1H-benzo[de]isoquinoline- 1,3(2H)- dione pigment material is investigated with frequency modulation of 250 MHz femtosecond high repetition rate (HRR) laser by an optical chopper. Thermal lensing formation on the material due to...

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Main Authors: Zainal Abidin, Mohd Shahnan, Muhammad Noor, Ahmad Shukri, Mahdi, Mohd Adzir, Abdul Rashid, Suraya
Format: Conference or Workshop Item
Language:English
Published: IEEE 2013
Online Access:http://psasir.upm.edu.my/id/eprint/68840/
http://psasir.upm.edu.my/id/eprint/68840/1/Frequency%20modulation%20optimization%20of%20nonlinear%20optical%20Z-scan%20by%20high%20repetition%20rate%20femtosecond%20laser.pdf
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author Zainal Abidin, Mohd Shahnan
Muhammad Noor, Ahmad Shukri
Mahdi, Mohd Adzir
Abdul Rashid, Suraya
author_facet Zainal Abidin, Mohd Shahnan
Muhammad Noor, Ahmad Shukri
Mahdi, Mohd Adzir
Abdul Rashid, Suraya
author_sort Zainal Abidin, Mohd Shahnan
building UPM Institutional Repository
collection Online Access
description Nonlinear optical properties of 2- (2-hydroxyethyl)-6-(morpholin-4-yl) -1H-benzo[de]isoquinoline- 1,3(2H)- dione pigment material is investigated with frequency modulation of 250 MHz femtosecond high repetition rate (HRR) laser by an optical chopper. Thermal lensing formation on the material due to thermal build up from HRR laser leads to measurement ambiguity of nonlinear refractive index (NLRI) and two-photon absorption cross section (TPACS). Optimized optical chopper frequency range of 50% duty cycle modulated laser beam effectively reduces laser contact time on the material and resulted in improved NLRI and TPACS of -8.23 × 10-18 m2/W and 2.96 GM respectively.
first_indexed 2025-11-15T11:38:31Z
format Conference or Workshop Item
id upm-68840
institution Universiti Putra Malaysia
institution_category Local University
language English
last_indexed 2025-11-15T11:38:31Z
publishDate 2013
publisher IEEE
recordtype eprints
repository_type Digital Repository
spelling upm-688402019-06-10T03:48:52Z http://psasir.upm.edu.my/id/eprint/68840/ Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser Zainal Abidin, Mohd Shahnan Muhammad Noor, Ahmad Shukri Mahdi, Mohd Adzir Abdul Rashid, Suraya Nonlinear optical properties of 2- (2-hydroxyethyl)-6-(morpholin-4-yl) -1H-benzo[de]isoquinoline- 1,3(2H)- dione pigment material is investigated with frequency modulation of 250 MHz femtosecond high repetition rate (HRR) laser by an optical chopper. Thermal lensing formation on the material due to thermal build up from HRR laser leads to measurement ambiguity of nonlinear refractive index (NLRI) and two-photon absorption cross section (TPACS). Optimized optical chopper frequency range of 50% duty cycle modulated laser beam effectively reduces laser contact time on the material and resulted in improved NLRI and TPACS of -8.23 × 10-18 m2/W and 2.96 GM respectively. IEEE 2013 Conference or Workshop Item PeerReviewed text en http://psasir.upm.edu.my/id/eprint/68840/1/Frequency%20modulation%20optimization%20of%20nonlinear%20optical%20Z-scan%20by%20high%20repetition%20rate%20femtosecond%20laser.pdf Zainal Abidin, Mohd Shahnan and Muhammad Noor, Ahmad Shukri and Mahdi, Mohd Adzir and Abdul Rashid, Suraya (2013) Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser. In: 4th International Conference on Photonics (ICP2013), 28-30 Oct. 2013, Equatorial Hotel Melaka, Malaysia. (pp. 90-92). 10.1109/ICP.2013.6687077
spellingShingle Zainal Abidin, Mohd Shahnan
Muhammad Noor, Ahmad Shukri
Mahdi, Mohd Adzir
Abdul Rashid, Suraya
Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser
title Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser
title_full Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser
title_fullStr Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser
title_full_unstemmed Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser
title_short Frequency modulation optimization of nonlinear optical Z-scan by high repetition rate femtosecond laser
title_sort frequency modulation optimization of nonlinear optical z-scan by high repetition rate femtosecond laser
url http://psasir.upm.edu.my/id/eprint/68840/
http://psasir.upm.edu.my/id/eprint/68840/
http://psasir.upm.edu.my/id/eprint/68840/1/Frequency%20modulation%20optimization%20of%20nonlinear%20optical%20Z-scan%20by%20high%20repetition%20rate%20femtosecond%20laser.pdf