Second-Order Nonlinear Optical Microscopy of a H–Si(111)1 × 1 Surface in Ultra-High Vacuum Conditions

<table>SHG intensity images of a H–Si(111) surface (a) before and (b) after IR light pulse irradiation, and (c) after hydrogen exposure to the Si surface.  Scale bars are 200 <i>μ</i>m.</table>

Physics Research International

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Figure 4

Figure 4: Second-Order Nonlinear Optical Microscopy of a H–Si(111)1 × 1 Surface in Ultra-High Vacuum Conditions 