Ternary Chalcogenide Ta₂NiTe₅ as Broadband Saturable Absorber for Passively Q‐Switched Pulse Generation (Advanced Optical Materials 7/2024)

Novel 2D Ternary Chalcogenide as Saturable Absorber Article number 2301261 highlights a groundbreaking 2D ternary chalcogenide saturable absorber (SA), Ta2NiTe5, synthesized using the liquid-phase exfoliation technique. Shubin Lu, Qiao Wen, and co-workers explore the nonlinear optical properties of Ta2NiTe5 nanosheets, spanning from 500 nm to 3.0 µm, through P-scan and open-aperture Z-scan methods. Additionally, the authors successfully demonstrate stable passively Q-switched lasers utilizing the Ta2NiTe5-SA device at wavelengths of 1.0, 2.0, and 3.0 µm. These findings not only reaffirm the promising potential of 2D ternary chalcogenides as SAs for achieving pulsed lasers across a broad spectrum, but also pave the way for advancing their potential applications in optoelectronic devices.