516 mW, nanosecond Nd:LuAG laser Q-switched by gold nanorods

Abstract

Q-switched operation of an Nd:LuAG laser using gold nanorods (GNRs) as the saturable absorber (SA) is reported, which also produces the highest average power among the nanosecond Nd-doped Q-switched lasers by GNRs-based SA. The applied GNRs are prepared using a seed-mediated growth method and then dropped onto the quartz substrate to fabricate the SA. The average power of the Q-switched laser is 516 mW with the shortest pulse duration of 606.7 ns and the repetition rate of 265.1 kHz.

Black Phosphorus Coated D-Shape Fiber as a Mode-Locker for Picosecond Soliton Pulse Generation

“…However, their gradually degrading performance and relatively low optical damage threshold deter them from being widely applied. Other materials, such as gold nanorods [12] and fluorinated antimonene [13], were also reported to have potential for SA application. For instance, Zhang et al [13] generated Q-switched pulses in Nd:LuAG laser cavity using a fluorinated antimonene-based SA as a Q-switcher.…”

Efficient Trichromatic Nd:YLF Laser Emitting at 1047 nm, 1053 nm and 1314 nm

“…Amongst Neodymium (Nd)-doped crystals, which are well known for their 1 µm emissions, Yttrium Aluminum Garnet (Nd:YAG) and Yttrium Orthovanadate (Nd:YVO) emitting at 1064 nm, and Yttrium Lithium Fluoride (Nd:YLF), emitting at both 1053 nm (σ) and 1047 nm (π), are most commonly used [12][13][14]. Recently grown crystals, such as Lutetium Aluminum Garnet (Nd:LuAG), have also garnered interest for potential new applications, especially for the generation of Q-switched pulses with saturable absorbers [15].…”