Abstract
We report the first experimental demonstration of a laser-driven circularly polarized soft-x-ray laser chain. It has been achieved by seeding a 32.8 nm Kr ix plasma amplifier with a high-order harmonic beam, which has been circularly polarized using a four-reflector polarizer. Our measurements testify that the amplified radiation maintains the initial polarization of the seed pulse in good agreement with our Maxwell-Bloch modeling. The resulting fully circular soft-x-ray laser beam exhibits a Gaussian profile and yields about 1010 photons per shot, fulfilling the requirements for laboratory-scale photon-demanding application experiments.
| Original language | English |
|---|---|
| Article number | 083901 |
| Journal | Physical Review Letters |
| Volume | 115 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 19 Aug 2015 |
| Externally published | Yes |
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