Renewable liquid optics with magneto-electrostatic control

Dmitri Ryutov; Arthur Toor

doi:10.1117/12.452959

28 December 2001 Renewable liquid optics with magneto-electrostatic control

Dmitri Ryutov, Arthur Toor

Proceedings Volume 4500, Optics for Fourth-Generation X-Ray Sources; (2001) https://doi.org/10.1117/12.452959
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

We suggest a new class of high-flux renewable optics, in particular, for the use at the X-ray free electron laser, LCLS, which is under discussion now. The size of optical elements we have in mind is from a fraction of a square centimeter to a few square centimeters. We suggest that working fluid be pressed through a porous substrate (made, e.g., of fused capillaries) to form a film, a few tens to a hundred microns thick. After the passage of an intense laser pulse, the liquid film is sucked back through the substrate by a reversed motion of the piston, and formed anew before the next pulse. The working surface of the film is made flat by capillary forces. We discuss the role of viscous, gravitational, and capillary forces in the dynamics of the film and show that the properly made film can be arbitrarily oriented with respect to the gravitational force. This makes the proposed optics very flexible. We discuss effects of vibrations of the supporting structures on the quality of optical elements. Limitations on the radiation intensity are formulated. We show how the shape of the film surface can be controlled by electrostatic and magnetic forces, allowing one to make parabolic mirrors and reflecting diffraction gratings.

Citation Download Citation

Dmitri Ryutov and Arthur Toor "Renewable liquid optics with magneto-electrostatic control", Proc. SPIE 4500, Optics for Fourth-Generation X-Ray Sources, (28 December 2001); https://doi.org/10.1117/12.452959

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