Hertz et al. 4 have developed a soft-X-ray/EUV microscope in the water window that achieves sub-visible-light resolution. The microscope consists of a laser-plasma source and zone-plate optics to ...
This uses a CO 2 laser of wavelength 10.6 μm to convert tin droplets into a plasma, which then emits bursts of broadband EUV radiation. According to Cymer, this set-up has twice the conversion ...
For years, Dutch company ASML has maintained a global monopoly on EUV machines using the laser-produced plasma (LPP) method. However, since 2019, US-led sanctions have barred ASML from selling ...