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Gold transmission gratings with submicrometer periods and thicknesses >0. 5. mu. m

Journal Article · · J. Vac. Sci. Technol.; (United States)
DOI:https://doi.org/10.1116/1.571230· OSTI ID:6002554
Gold gratings with spatial periods of 0.3 and 0.2 ..mu..m have been fabricated in thicknesses of 0.6 and 0.25 ..mu..m, respectively, and used in x-ray spectroscopy and spatial-period-division. Fabrication techniques included: holographic lithography, shadowing, x-ray lithography, and gold microplating. Control of linewidth to tolerance of the order of 10 nm has been demonstrated for gratings of 0.2 ..mu..m period. A high resolution imaging spectrometer, composed of a 22 x Wolter x-ray microscope in conjunction with a gold transmission grating, was tested. At a wavelength of 0.69 nm, a resolving power, lambda/..delta..lambda, of 200 was demonstrated. Resolution in this case was source-size limited. Gratings of 99.5 nm period were exposed in PMMA by x-ray (lambda = 4.5 nm) spatial-period-division.
Research Organization:
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
OSTI ID:
6002554
Journal Information:
J. Vac. Sci. Technol.; (United States), Journal Name: J. Vac. Sci. Technol.; (United States) Vol. 19:4; ISSN JVSTA
Country of Publication:
United States
Language:
English