Forest ElemPhysics Optics ThinFilms

Thin Film Applet

http://physics.bu.edu/~duffy/semester2/c26_thinfilm.html

Thin Film of MgF2 on glass

1.) [math]n_{air} = 1 \lt n_{MgF2} = 1.38 \lt n_{glass} = 1.5[/math]

This means that reflection on all the interfaces will have a half wavelength [math](\pi)[/math] phase shift.

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