Generalized model for photoinduced surface structure in amorphous thin films

Chao Lu, Daniel Recht, Craig B. Arnold

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


We present a generalized model to explain the spatial and temporal evolution of photoinduced surface structure in photosensitive amorphous thin films. The model describes these films as an incompressible viscous fluid driven by a photoinduced pressure originating from dipole rearrangement. This derivation requires only the polarizability, viscosity and surface tension of the system. Using values of these physical parameters, we check the validity of the model by fitting to experimental data of As2S3 and demonstrating good agreement.

Original languageEnglish (US)
Article number105503
JournalPhysical review letters
Issue number10
StatePublished - Sep 5 2013

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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