Utilizing dynamic laser speckle to probe nanoscale morphology evolution in nanoporous gold thin films

Optics Express
Christopher A R ChapmanManyalibo J Matthews

Abstract

This paper demonstrates the use of dynamic laser speckle autocorrelation spectroscopy in conjunction with the photothermal treatment of nanoporous gold (np-Au) thin films to probe nanoscale morphology changes during the photothermal treatment. Utilizing this spectroscopy method, backscattered speckle from the incident laser is tracked during photothermal treatment and both the characteristic feature size and annealing time of the film are determined. These results demonstrate that this method can successfully be used to monitor laser-based surface modification processes without the use of ex-situ characterization.

References

Nov 13, 2008·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Marion ErpeldingJérôme Crassous
Aug 14, 2012·Nature Materials·Takeshi FujitaMingwei Chen
May 21, 2014·Nanoscale·Ozge KurtulusErkin Seker
May 30, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Lina SchadeNils Hartmann
Sep 11, 2014·Nanoscale·Md Masud Parvez ArnobWei-Chuan Shih
Feb 24, 2015·ACS Applied Materials & Interfaces·Christopher A R ChapmanErkin Seker
Aug 15, 2015·Analytical Chemistry·Pallavi DaggumatiErkin Seker
Sep 29, 2015·Nanoscale·Christopher A R ChapmanManyalibo J Matthews

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