title: Through nanohole formation in thin metallic film by single nanosecond laser pulses using optical dielectric apertureless probe.
abstract: Separate nanoholes with the minimum size down to 35 nm (~λ/15) and nanohole arrays with the hole size about 100 nm (~λ/5) were fabricated in a 50 nm optically "thick" Au/Pd film, using single 532 nm pump nanosecond laser pulses focused to diffraction-limited spots by a specially designed apertureless dielectric fiber probe. Nanohole fabrication in the metallic film was found to result from lateral heat diffusion and center-symmetrical lateral expulsion of the melt by its vapor recoil pressure. The optimized apertureless dielectric microprobe was demonstrated to enable laser fabrication of deep through nanoholes.
authors: Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia.
authors: Y N
authors: YN
authors: Kulchin
authors: O B
authors: OB
authors: Vitrik
authors: A A
authors: AA
authors: Kuchmizhak
authors: A V
authors: AV
authors: Nepomnyashchii
authors: A G
authors: AG
authors: Savchuk
authors: A A
authors: AA
authors: Ionin
authors: S I
authors: SI
authors: Kudryashov
authors: S V
authors: SV
authors: Makarov
mesh_terms: D007834:Lasers; D008670:Metals; D036103:Nanotechnology / Q000295:instrumentation*; D055096:Optical Devices; D055620:Optical Phenomena
chemical_list: D008670:Metals