Login / Signup

SERS-Active Pattern in Silver-Ion-Exchanged Glass Drawn by Infrared Nanosecond Laser.

Ekaterina BabichVladimir KaasikAlexey RedkovThomas MaurerAndrey A Lipovskii
Published in: Nanomaterials (Basel, Switzerland) (2020)
The irradiation of silver-to-sodium ion-exchanged glass with 1.06-μm nanosecond laser pulses of mJ-range energy results in the formation of silver nanoparticles under the glass surface. Following chemical removal of ~25-nm glass layer reveals a pattern of nanoparticles capable of surface enhancement of Raman scattering (SERS). The pattern formed when laser pulses are more than half-overlapped provides up to ~105 enhancement and uniform SERS signal distribution, while the decrease of the pulse overlap results in an order of magnitude higher but less uniform enhancement.
Keyphrases
  • silver nanoparticles
  • gold nanoparticles
  • raman spectroscopy
  • sensitive detection
  • label free
  • high speed
  • photodynamic therapy
  • high resolution