Visualization of second-order nonlinear layer in thermally poled fused silica glass

An, Honglin; Fleming, Simon; Cox, Guy
December 2004
Applied Physics Letters;12/13/2004, Vol. 85 Issue 24, p5819
Academic Journal
Second-harmonic microscopy has been applied to characterize the second-order nonlinear layer in fused silica plates thermally poled at 280 °C and 3.5 kV for different time intervals. The nonlinear layer is found only under the anode surface and to be ∼5 μm deep under the anode for a poling time of 30 min. Progression of this layer into the bulk glass with poling time is also characterized.


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