Laser energy deposition at sapphire surfaces studied by pulsed photothermal deformation

Dreyfus, R. W.; McDonald, F. A.; von Gutfeld, R. J.
May 1987
Applied Physics Letters;5/25/1987, Vol. 50 Issue 21, p1491
Academic Journal
A surface deformation technique measures the energy deposited in sapphire surfaces irradiated by focused excimer laser light. The absorbed energy creates ≲3 electron-hole pairs/oxygen atom, consistent with a photochemical etching mechanism.


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