Transmittance spectra of single layer.
The surface morphologies of HR before laser irradiation.
Cross-sectional view of HR.
, laser damaged morphologies of HR by an optical microscope.
, laser damaged morphology of HR by SEM.
(a) , , laser damage region, and (b) the corresponding Raman spectra in HR.
Surface elements distribution on HR.
Measured frequencies of Raman active modes of films.
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