Compact-cavity two-dimensional Hermite-Gaussian lasing enabled by birefringence-induced astigmatism
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We report controllable two-dimensional (2D) Hermite-Gaussian (HG) lasing in a compact plano-concave cavity by exploiting the intrinsic birefringence of an a-cut Nd:YVO4 crystal. The birefringence-induced astigmatism provides modal discrimination against tilted... ...
