Package pulse.problem.laser

Class DiscretePulse2D

java.lang.Object

pulse.problem.laser.DiscretePulse

pulse.problem.laser.DiscretePulse2D

All Implemented Interfaces:

Serializable

public class DiscretePulse2D
extends DiscretePulse

The discrete pulse on a Grid2D.

The main parameters are the discretePulseWidth (defined in the superclass) and discretePulseSpot, which is the discretised version of the spot diameter of the respective Pulse object.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
DiscretePulse2D(ClassicalProblem2D problem, Grid2D grid)	The constructor for DiscretePulse2D.

Method Summary

Modifier and Type	Method	Description
void	evalPulseSpot()	Calculates the discretePulseSpot using the gridRadialDistance method.
double	evaluateAt(double time, double radialCoord)	This calculates the dimensionless, discretised pulse function at a dimensionless radial coordinate coord.
double	getDiscretePulseSpot()
double	getRadialConversionFactor()
int	getWidthToleranceFactor()	A smaller tolerance factor is set for 2D calculations
double	laserPowerAt(double time)	Calculates the laser power at a give moment in time.

Methods inherited from class pulse.problem.laser.DiscretePulse

getCharacteristicTime, getDiscreteWidth, getGrid, getPhysicalPulse, init, pulseWidthGrid, resolvedPulseWidthSeconds, totalEnergy

Methods inherited from class java.lang.Object

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

Constructor Detail

DiscretePulse2D

public DiscretePulse2D(ClassicalProblem2D problem,
                       Grid2D grid)

The constructor for DiscretePulse2D.

Calls the constructor of the superclass, after which calculates the discretePulseSpot using the gridRadialDistance method of this class. The dimension factor is defined as the sample diameter.

Parameters:

problem - a two-dimensional problem

grid - the two-dimensional grid

Method Detail

evaluateAt

public double evaluateAt(double time,
                         double radialCoord)

This calculates the dimensionless, discretised pulse function at a dimensionless radial coordinate coord.

It uses a Heaviside function to determine whether the radialCoord lies within the 0 <= radialCoord <= discretePulseSpot interval. It uses the time parameter to determine the discrete pulse function using evaluateAt(time).

Parameters:

time - the time for calculation

radialCoord - - the radial coordinate [length dimension]

Returns:

the pulse function at time and coord, or 0 if coord > spotDiameter.

laserPowerAt

public double laserPowerAt(double time)

Calculates the laser power at a give moment in time. The total laser energy is normalised over a beam partially illuminating the sample surface.

Overrides:

laserPowerAt in class DiscretePulse

Parameters:

time - a moment in time (in dimensionless units)

Returns:

the laser power in arbitrary units

evalPulseSpot

public final void evalPulseSpot()

Calculates the discretePulseSpot using the gridRadialDistance method.

getDiscretePulseSpot

public final double getDiscretePulseSpot()

getRadialConversionFactor

public final double getRadialConversionFactor()

getWidthToleranceFactor

public int getWidthToleranceFactor()

A smaller tolerance factor is set for 2D calculations

Overrides:

getWidthToleranceFactor in class DiscretePulse

Returns:

the smallest fraction of a characteristic time resolved as a finite pulse.