TY - JOUR T1 - Investigation and Fabrication of Carbon nano-Tubes Saturable Absorber by spray caoting Method TT - بررسی و ساخت جاذب اشباع پذیر از نانولوله کربنی تک دیواره به روش لایه نشانی تبخیر عمودی و به کارگیری آن در لیزر Nd:YAG به منظور قفل شدگی مد JF - opsi JO - opsi VL - 20 IS - 0 UR - http://opsi.ir/article-1-90-en.html Y1 - 2014 SP - 1541 EP - 1544 KW - Ultra-short pulse KW - spray coating KW - mode-locking KW - carbon nano-tube N2 - Abstract- Nowadays single-wall carbon nano-tubes saturable absorbers used successfully in different LASERs such as solid-states, fibers and semiconductors. In this task we fabricate some samples contain this nano-tube by vertical evaporation method in order to study different parameters that affect to this coating process. Also by inserting this samples inside the ND:YAG laser resonator, in suitable position, the capability of ordering the shape of the output pulse or phase. Locking the longitudinal modes of the laser is experimentally investigated. By measuring the shape of the output pulses we hope tom obtain ultra-short pulses due to the mode-locking process. M3 ER -