Enhancement cavities for continuous-wave/pulsed laser light Tailored to your setup, the enhancement cavity CALDERA can be built for continuous-wave as well as for multi-kW-level average power pulsed operation, serving applications such as the generation of coherent vacuum-/extreme-ultraviolet (XUV) radiation at repetition rates ofseveral 10s of MHz.
Key Product Features:
State-of-the-art broadband cavity optics Ready for average powers on the 100-kW level Advanced designs tailored to specific applications Stable operation at repetition rates ≥10 MHz
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Working principle:
Femtosecond enhancement cavity: a MHz-repetition-rate pulsetrain is coherently coupled to a passive optical resonator via a partially transmitting input coupler, giving rise to a circulating pulse with a power increased by up to a few orders of magnitude. The intracavity pulse can be focused to a gas target to generate coherent vacuum-/extreme-ultraviolet (XUV)radiation at repetition rates of several 10’s of MHz. Coherent XUV radiation obtained by cavity-enhanced high-harmonic generation combines high pulse repetition rates with high photon energies at high XUV photon flux, and serves a host of time-domain and frequency-domain precision metrology applications.
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Working principle of an enhancement cavity: the pulses of a MHz-repetition-rate train are coherently added up in time to a significantly more intense pulse circulating in the cavity. The cavity consists of an input coupler (R < 100%) and several highly reflecting (HR) mirrors (R=100%). |
Applications
Vacuum- and extreme-ultraviolet frequency combs [1]
Multi-MHz-repetition-rate photoemission spectroscopy [2]
MW-level picosecond pulses for hard x-ray generation via inverse Compton scattering [3]