Transition from saturable absorption to reverse saturable absorption of carmoisine dye under low-powered continuous wave laser excitation

• Main Authors: Abdullah, M., Bakhtiar, Hazri, Krishnan, Ganesan, Aziz, Muhammad Safwan, Danial, Wan Hazman, Islam, Shumaila
• Format: Article
• Language: English; English; English
• Published: Elsevier Ltd 2019
• Subjects: QC Physics; QD Chemistry
• Online Access: http://irep.iium.edu.my/76353/1/76353_Transition%20from%20saturable%20absorption_article.pdf; http://irep.iium.edu.my/76353/2/76353_Transition%20from%20saturable%20absorption_scopus.pdf; http://irep.iium.edu.my/76353/3/76353_Transition%20from%20saturable%20absorption_wos.pdf; http://irep.iium.edu.my/76353/; https://pdf.sciencedirectassets.com/271488/1-s2.0-S0030399219X00031/1-s2.0-S0030399218316669/main.pdf?X-Amz-Security-Token=IQoJb3JpZ2luX2VjEI7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCXVzLWVhc3QtMSJHMEUCIQCPj%2FJcxHYX0dqNeTS5UIdDJFXwDtKlIhCvJ75bscDrhgIgQHA65tX5hu8L1QKlsQuSRzjcO722uIZRK%2Bvm8GUAUqIq2AIIt%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARACGgwwNTkwMDM1NDY4NjUiDJwJx16uyVDTfx9v9yqsAqZ07KI%2BlDEvf3pHY%2BJxPM6%2FE9AAelyrTwpBEnYlHx%2BqiwpaP4Bx%2BRpiym8ZkeBkhyl7VM1eMOXXFOVz3rl8%2FCqJqfCAAuQQ0HBmY7aH1jxGolS73fLEY4OTESBc39KStP6flJEpR6AbYD6%2B%2B5WZR4aVnTyOYDnMZjrEyL1b8yIQezE8eAMXKsnomqF0jAdw47j9jqcyMdPtVVnvRXIvVf14DISbkyYPPH8r64apR2iz%2BhXbzKRInQvL1fIOaJDhKyq3CT2w0qiF0wceoIqtSDCjZgnbfDlFyUosEgkVlGj2Uwd3ekpaNy0RiFf94CHaUfCWXEq7DhKn9z0Mfyo3ZTTMYxkFxBILPYBPF%2B3wnPCR%2Bvu09kdADL0DOH0uMfePOAjg%2BgtN5iTt1Q2BvjCZg87uBTrQAuOiiok2dz0W%2B6FeYtWmggnajRGo7i7KHgOgr%2FzDR34UeaxvNyrHHrH%2FoIdf3iaGjBUNDWvM3xgMPBVU6WAM9ip%2Fbnbt06PAxcLU5fz5kiuDcEiOCOKwwBGEbuJgMs25%2FciqyJMauHdy2l%2F84uKSqe5hHznPOgB3MrOFmjGocG9hAZZQwWPaTe6%2Fiy5ZTHK95OOtbnD25ApbVw%2BaYwvyjqlz2Aa2B%2BjoDTP662W5ujP%2FwFX%2BLh6YsWqDQKlnhpV4TC%2BdWXlrVObT6v7FnMr%2BzmG5kv0Wr%2FH8wrAbmb9lw1c9%2FH%2BXx%2Fyr0k5ARfbQvQOhPNTa1sH00MM3n19oNwPX9tOw5m8c6KHTKPQT45%2BhX%2BrR9V%2FsEHLq1ugLjshII1TO93dX9W7WXLNTue7HD0NUG702DhU8gY3XtE5oIlYKtrrrZ3YXewyLF98gMAr0iHcwfg%3D%3D&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Date=20191119T070922Z&X-Amz-SignedHeaders=host&X-Amz-Expires=300&X-Amz-Credential=ASIAQ3PHCVTYWK5SETW7%2F20191119%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Signature=869f0a0e9a0c9f1bfd0a89519eb1989a97dae7b2e73bf631a4a095c5fdf905b2&hash=1f74d8b6591cbe0aaaba63ea9ab8e3705bb3bfb5e9761c6256ca6370c24ba954&host=68042c943591013ac2b2430a89b270f6af2c76d8dfd086a07176afe7c76c2c61&pii=S0030399218316669&tid=spdf-1354fcbb-ad56-4a5f-80d5-67177337370c&sid=49fffaf83409754fae0a7c930b733b8e0564gxrqb&type=client

Unique nonlinear optics (NLO) properties i.e. intensity-dependent nonlinear absorption and refraction of carmoisine (food dye) is studied using a single beam z-scan technique. A switchover behavior from a saturable absorption (SA) to reverse saturable absorption (RSA) is observed by increasing conc...