Enhancement cavity 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 of several 10s of MHz.
Key Product Features:
Ready for average powers on the 100-kW level
State-of-the-art broadband cavity optics
Advanced designs tailored to specific applications
Stable operation at repetition rates ≥10 MHz
Working principle:
Femtosecond enhancement cavity: a MHz-repetition-rate pulse train 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 [1].
Components and working principle of the enhancement cavity.
Picture: Christian Hackenberger
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]
and more ...
References:
[1] I. Pupeza, C. Zhang, M. Högner, J. Ye, „Extreme-ultraviolet frequency combs for precision metrology and attosecond science,” Nature Photonics 15, 175–186 (2021)
[2] T. Saule, S. Heinrich, J. Schötz, N. Lilienfein, M. Högner, O. de Vries, M. Plötner, J. Weitenberg, D. Esser, J. Schulte, P. Rußbüldt, J. Limpert, M. F. Kling, U. Kleineberg, I. Pupeza, “High-Flux, Ultrafast Extreme-Ultraviolet Photoemission Spectroscopy at 18.4 MHz Pulse Repetition Rate,”Nature Communications, 10:458 (2019)
[3] H. Carstens, N. Lilienfein, S. Holzberger, C. Jocher, T. Eidam, J. Limpert, A. Tuennermann, J. Weitenberg, D.C. Yost, A. Alghamdi, Z. Alahmed, A. Azzeer, A. Apolonski, E. Fill, F. Krausz, I. Pupeza, “Megawatt-scale average-power ultrashort pulses in an enhancement cavity,” Optics Letters 39, 2595 (2014)
商品属性 [功率] 100-kW level [重复频率] ≥10 MHz