Generation of collimated far-ultraviolet (FUV) light using the laser-produced metal plasma

Laser-produced plasma is a promising compact light source applicable in broad range of wavelengths. We performed spectroscopic analysis and characterization the laser-produced Al, Fe, Cu, Inconel alloy (Ni/Cr/Fe) to explore their potential applications far-ultraviolet (FUV) region where these methods are yet widely exploited. The emission spectrum from each target exhibited characteristic spectral profile over wavelength 120 250 nm. These results were well reproduced by simulations, providing detailed information on plasma. also developed dedicated parabolic mirror that successfully collimated radiation into beam with an intensity enhanced factor ∼35. Our study demonstrated generation FUV 107 photons/pulse/1% bandwidth as potent laboratory-size for various applications.