Er:YLF crystals «In Stock»

Er³⁺:YLF crystals are characterized by a low phonon frequency, which decreases the probability of non-radiative multi-phonon relaxations, therefore increases the luminescence quantum efficiency. A long lifetime of laser emitting levels allow higher energy storage, which is useful for the Q-switch lasing regime. A high bandgap along with low phonon energy leads to a very wide transparency range, which is possibly from VUV to 10 µm region. Negative Er³⁺:YLF thermo-optic coefficient is an advantage since it reduces the thermal-lensing effect and improves beam shape as well as stability at high average pump power.