field_int - get the intensity of the field

Calling Sequence

[intensity]=field_int(field_in[,amp])

Parameters

• field_in :input field. it must be diffractive wavefront.
• amp : boolean value to identify whether to get the amplitude instead of intensity matrix. the default is 0,i.e, get the intensity matrix.
• intensity : the output intensity matrix

Description

get the intensity of the field. note the output is 2D matrix.

Examples

	F1=begin(0.01,1e-6);
	F2=gauss(F1,0.004);
	F3=forvard(F2,1);
	in=field_int(F3);
	surf(in);
 

Author

Chen jingyuan,

See Also

file_int ,   field_pha ,   field_contents ,