unal.od.jdiffraction.cpu

Class DoubleFresnelFourier

java.lang.Object

unal.od.jdiffraction.cpu.DoublePropagator

unal.od.jdiffraction.cpu.DoubleFresnelFourier

public class DoubleFresnelFourier
extends DoublePropagator

Computes wave diffraction through Fresnel-Fourier method with double precision.

Since:

JDiffraction 1.0

Author:

Pablo Piedrahita-Quintero (jppiedrahitaq@unal.edu.co), Carlos Trujillo (catrujila@unal.edu.co), Jorge Garcia-Sucerquia (jigarcia@unal.edu.co)

Constructor Summary

Constructors

Constructor and Description
DoubleFresnelFourier(int M, int N, double lambda, double z, double dx, double dy) Creates a new instance of DoubleFresnelFourier.

Method Summary

Modifier and Type	Method and Description
void	diffract(double[][] field) Performs numerical diffraction of the complex data in field, leaving the result in field.
double	getDx()
double	getDxOut()
double	getDy()
double	getDyOut()
double	getLambda()
int	getM()
int	getN()
double	getZ()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoubleFresnelFourier

public DoubleFresnelFourier(int M,
                            int N,
                            double lambda,
                            double z,
                            double dx,
                            double dy)

Creates a new instance of DoubleFresnelFourier. Also performs kernel calculations.

Parameters:

M - Number of data points on x direction.

N - Number of data points on y direction.

lambda - Wavelength.

z - Distance.

dx - Sampling pitch on x direction.

dy - Sampling pitch on y direction.

Method Detail

diffract

public void diffract(double[][] field)

Description copied from class: DoublePropagator

Performs numerical diffraction of the complex data in field, leaving the result in field. The physical layout of the complex data must be the same as in JTransforms:

field[i][2 * j] = Re[i][j], field[i][2 * j + 1] = Im[i][j]; 0 <= i < M, 0 <= j < N

Specified by:

diffract in class DoublePropagator

Parameters:

field - The complex field to diffract.

getM

public int getM()

getN

public int getN()

getZ

public double getZ()

getLambda

public double getLambda()

getDx

public double getDx()

getDy

public double getDy()

getDxOut

public double getDxOut()

getDyOut

public double getDyOut()