Multiterawatt femtosecond laser system with kilohertz pulse repetition rate

Rational designviadual-site aliovalent substitution leads to an outstanding IR nonlinear optical material with well-balanced comprehensive properties

“…The infrared (IR) laser occupies a more and more important position in military weapons, information storage, precision micromanufacturing and other scientic research. [1][2][3][4][5] Generally, the IR nonlinear optical (NLO) crystal is an integral part for IR laser generation, which requires a phase-matching (PM) feature, a broad energy gap (E g ), a strong second-harmonicgeneration (SHG) intensity (d eff ), a large laser-induced damage threshold (LIDT), an appropriate birefringence (Dn), and a favorable physical and chemical stability. 6 Chalcopyrite-type materials, AgGaS 2 , 7 AgGaSe 2 , 8 and ZnGeP 2 , 9 are commercially available and exhibit sufficient d eff and wide transmittance in the IR region.…”

Investigation on the Structure of a LiB3O5–Li2Mo3O10 High-Temperature Solution for Understanding the Li2Mo3O10 Flux Behavior

“…The lithium triborate (LiB 3 O 5 ) crystal is the best selection for generating the second and third harmonics of the Nd:YAG laser because of its appealing properties such as relatively large nonlinear optical coefficients, a wide transparency range, a high damage threshold, a large acceptance angle, good chemical stability, and good mechanical properties. , Recently, particular attention has been paid to the crystal application in superintense and ultrafast laser systems. − For example, by using a 100 mm × 100 mm × 17 mm LiB 3 O 5 crystal, Liang and co-workers constructed a high-energy and high-conversion-efficiency laser system that achieved a peak power of 1.02 PW (1 PW = 10 15 W) with a pulse duration of 32 fs (1 fs =10 –15 s) . Such works are expected to open new prospects for studying the physics of intense fields and nonlinear quantum electrodynamics and for developing new technological applications, including laser particle acceleration, laser-assisted thermonuclear fusion, and new laser medical therapies. , The superintense and ultrafast laser systems demand wide-aperture and high-quality LiB 3 O 5 crystals, stimulating us to find better techniques to grow LiB 3 O 5 crystals.…”

“…6 Such works are expected to open new prospects for studying the physics of intense fields and nonlinear quantum electrodynamics and for developing new technological applications, including laser particle acceleration, laser-assisted thermonuclear fusion, and new laser medical therapies. 7,8 The super-intense and ultrafast laser systems demand wide-aperture and high-quality LiB 3 O 5 crystals, stimulating us to find better techniques to grow LiB 3 O 5 crystals.…”