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physical optics
two waves interferences


minimum dark newton ring fringe order when spherical and plane surfaces are separated by an air gap


Caution
Fill in all input cells.
Choose all parameters unit.
The spherical surface is supposed convex.
Both surfaces where reflection occur are supposed to be dielectric interfaces. Consequently there is an air/glass and a glass/air reflection introducing an additionnal phase shift of p.
All parameters are positive.

InputValueunit
lam
h
OutputValueUnit
koto be calculated
minimum dark newton ring fringe order when spherical and plane surfaces are separated by an air gap
lam : wavelength h : gap between the two surfaces ko : minimum order of a dark ring fringe ( corresponding to the smallest dark ring fringe )

Note
This calculation page can not detect all unrealistic inputs.



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