Efficient broadband 400 nm noncollinear second harmonic generation of chirped femtosecond laser pulses in BBO and LBO

Smith and later Liu et al have detailed an analysis of the three wave-mixing ultra-broadband phase matching (PM) condition using the concept of pulse-front tilt (PFT). We applied their model to design an original set-up for high power achromatic fs noncollinear (NC) second harmonic generation (SHG) with PFT in Beta-Barium Borate (BBO) and Lithium Triborate (LBO).