• search hit 8 of 9
Back to Result List

Femtosecond laser induced nanostructuring for surface enhanced Raman spectroscopy

  • The formation of periodical nanostructures with femtosecond laser pulses was used to create highly efficient substrates for surface-enhanced Raman spectroscopy (SERS). We report about the structuring of silver and copper substrates and their application to the SERS of DNA (herring sperm) and protein molecules (egg albumen). The maximum enhancement factors were found on Ag substrates processed with the second harmonic generation (SHG) of a 1-kHz Ti:sapphire laser and structure periods near the SHG wavelength. In the case of copper, however, the highest enhancement was obtained with long-period ripples induced with at fundamental wavelength. This is explained by an additional significant influence of nanoparticles on the surface. Nanostructured areas in the range of 1.25 mm2 were obtained in 10 s. The surfaces were characterized by scanning electron microscopy, Fast Fourier Transform and Raman spectroscopy. Moreover, the role of the chemical modification of the metal structures is addressed. Thin oxide layers resulting from working in atmosphere which improve the biocompatibility were indicated by vibration spectra. It is expected that the detailed study of the mechanisms of laser-induced nanostructure formation will stimulate further applications of functionalized surfaces like photocatalysis, selective chemistry and nano-biology.

Download full text files

Export metadata

Additional Services

Search Google Scholar Statistics
Metadaten
Author:Hamza Messaoudi, Susanta Kumar Das, Janine Lange, Friedhelm Heinrich, Sigurd SchraderORCiD, Marcus FrohmeORCiDGND, Rüdiger Grunwald
URN:urn:nbn:de:kobv:526-opus4-15252
DOI (Version of Record):https://doi.org/10.1117/12.2037052
Publisher:Society of Photo-Optical Instrumentation Engineers (SPIE)
Document Type:Conference Proceeding
Language:English
Year of Publication:2014
Publishing Institution:Technische Hochschule Wildau
Release Date:2021/09/17
Tag:DNA; SERS; bio-molecule; femtosecond laser; laser-induced periodic surface structure; metal nanostructure; surface enhanced Raman spectroscopy; ultrashort pulse
First Page:61
Last Page:68
Source:H. Messaoudi, S. K. Das, J. Lange, F. Heinrich, S. Schrader, M. Frohme, and R. Grunwald "Femtosecond laser induced nanostructuring for surface enhanced Raman spectroscopy", Proc. SPIE 8972, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XIV, 89720H (7 March 2014); https://doi.org/10.1117/12.2037052
Copyright:Copyright 2014 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Faculties an central facilities:Fachbereich Ingenieurwesen / Wirtschaftsingenieurwesen (bis 8/2014)
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Licence (German):Das Dokument ist urheberrechtlich geschützt
Verstanden ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.