Optical properties of femtosecond laser-treated diamond (Articolo in rivista)

Type
Label
  • Optical properties of femtosecond laser-treated diamond (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00339-014-8311-9 (literal)
Alternative label
  • Calvani, Paolo; Bellucci, Alessandro; Girolami, Marco; Orlando, Stefano; Valentini, Veronica; Lettino, Antonio; Trucchi, Daniele Maria (2014)
    Optical properties of femtosecond laser-treated diamond
    in Applied physics. A, Materials science & processing (Print); Springer, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Calvani, Paolo; Bellucci, Alessandro; Girolami, Marco; Orlando, Stefano; Valentini, Veronica; Lettino, Antonio; Trucchi, Daniele Maria (literal)
Pagina inizio
  • 25 (literal)
Pagina fine
  • 29 (literal)
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  • L'unità operativa si è trasferita da IMIP a ISM nel 2014. (literal)
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  • http://link.springer.com/article/10.1007%2Fs00339-014-8311-9 (literal)
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  • 117 (literal)
Rivista
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  • 5 (literal)
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  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. CNR-IMIP, Institute of Inorganic Methodologies and Plasmas, National Research Council, Via Salaria km 29.300, Monterotondo Stazione, 00016, Rome, Italy 3. Physics Department, University of Rome Sapienza, Piazzale Aldo Moro 2, 00185, Rome, Italy 2. CNR-IMIP, U.O.S. PZ, Zona Industriale, 85050, Tito Scalo, PZ, Italy 4. CNR-IMAA, Institute of Methodologies for Environmental Analysis, Zona Industriale, 85050, Tito Scalo, PZ, Italy (literal)
Titolo
  • Optical properties of femtosecond laser-treated diamond (literal)
Abstract
  • A laser-induced periodic surface structure (LIPSS) has been fabricated on polycrystalline diamond by an ultrashort Ti:Sapphire pulsed laser source (? = 800 nm, P = 3 mJ, 100 fs) in a high vacuum chamber (<10-7 mbar) in order to increase diamond absorption in the visible and infrared wavelength ranges. A horizontally polarized laser beam had been focussed perpendicularly to the diamond surface and diamond target had been moved by an automated X-Y translational stage along the two directions orthogonal to the optical axis. Scanning electron microscopy of samples reveals an LIPSS with a ripple period of about 170 nm, shorter than the laser wavelength. Raman spectra of processed sample do not point out any evident sp 2 content, and diamond peak presents a right shift, indicating a compressive stress. The investigation of optical properties of fs-laser surface textured diamond is reported. Spectral photometry in the range 200/2,000 nm wavelength shows a significant increase of visible and infrared absorption (more than 80 %) compared to untreated specimens (less than 40 %). The analysis of optical characterization data highlights a close relationship between fabricated LIPSS and absorption properties, confirming the optical effectiveness of such a treatment as a light-trapping structure for diamond: these properties, reported for the first time, open the path for new applications of CVD diamond. (literal)
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