Author/Authors :
Tan، نويسنده , , Dezhi and Yamada، نويسنده , , Yuya and Zhou، نويسنده , , Shifeng and Shimotsuma، نويسنده , , Yasuhiko and Miura، نويسنده , , Kiyotaka and Qiu، نويسنده , , Jianrong، نويسنده ,
Abstract :
The carbon nanodots (CNDs) were synthesized by a simple method of femtosecond laser ablation of bagasse in ethanol. Strong optical limiting effects of as-prepared CNDs to 800 nm femtosecond laser pulses were observed with the threshold of 74 mJ/cm2. The strong two photon absorption of CNDs is responsible for the optical limiting response. The nonlinear coefficient was determined by the open-aperture Z-scan technique.
