lnslt_arr_transform - filters the field through lenslet array.

Calling Sequence

[dwf_out]=lnslt_arr_transform(dwf_in,lnslt_arr)

Parameters

• dwf_in :input field. it must be diffractive wavefront.
• lnslt_arr : the lenslet array object.
• dwf_out : the output field or diffractive wavefront.

Description

propagation the field to the far field of the lenslet array. This propagation is effected using the Goertzel-Reinsch algorithm, and wavefront pixels that straddle boundaries are properly weighted. By default the propagation leaves the wavefront in the focal plane of the lenslet array, with Nyquist sampling.

Examples

	pitch=0.000252;
	a=begin(0.004,1e-6,200); 
	b=circ_ap(a,8*pitch);
	l=lnslt_array(16,16,0.012246,0.000252,32,32);
	c=lnslt_arr_transform(b,l);
	field_plot(c);
 

Author

Chen jingyuan, Gan guangyong (IAPCM, Beijing,China.)

See Also

lnslt_array ,   fraunhoffer_GRT ,