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/*
This file is part of LPIC++, a particle-in-cell code for
simulating the interaction of laser light with plasma.
Copyright (C) 1994-1997 Roland Lichters
LPIC++ is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//////////////////////////////////////////////////////////////////////////////////////////
//
// laser pulses : linear, sin, sin^2
//
//////////////////////////////////////////////////////////////////////////////////////////
#ifndef PULSE_H
#define PULSE_H
#include <common.h>
#include <math.h>
#include <error.h>
#include <parameter.h>
#include <fstream>
#include <iomanip>
#include <readfile.h>
//////////////////////////////////////////////////////////////////////////////////////////
class pulse_component {
private:
char errname[filename_size];
public:
// int Q;
double Qy; // polarization dependent
double Qz; // "
double shift; // relative shift between y and z for circular polarization
int shape; // 1=linear, 2=sin, 3=sinsqr
int polarization; // 1=s, 2=p, 3=circular
double a0; // dimensionless amplitude
double raise; // raise time in fundamental periods
double duration; // pulse duration in fundamental periods
double delay; // time before puls starts propagation
double phase; // phaseshift
double chirp; // linear chirp "d omega/d t" in "fundamental frequency / fundamental period" = 2 pi T^-2
double nharm; // frequency in omega at the middle ("center") of the pulse
double center; // middle of the pulse
void read_parameters( parameter &p, char *side, int component );
double field( double t, int pol ); // pol=0 -> y, pol=1 -> z
double envelope( double t );
};
class input_pulse {
private:
char errname[filename_size];
public:
int Q;
/* int shape; // 1=linear, 2=sin, 3=sinsqr
int polarization; // 1=s, 2=p, 3=circular
double a0; // dimensionless amplitude of 1omega light
double raise; // raise time in periods
double duration; // pulse duration in periods
double delay; // time before puls starts propagation
double a2, a3, an; // amplitudes of 2omega, 3omega and nomega
double p2, p3, pn; // phases of 2omega, 3omega and nomega
double d2, d3, dn; // relative delays of 2omega, 3omega and nomega
double nharm; // frequency nomega over omega */
pulse_component pcs [4];
int Q_save;
double save_step;
double time_start, time_stop; // simulation time interval in periods
int Q_restart;
readfile rf;
input_pulse( parameter &p, char *side, int pulse_number );
void save( parameter &p, int pulse_number );
};
//////////////////////////////////////////////////////////////////////////////////////////
class pulse {
private:
static int pulse_number; // counts elements of type pulse
input_pulse input;
char errname[filename_size];
char *path;
public:
/* double Qy; // polarization dependent
double Qz; // "
double shift; // relative shift between y and z for circular polarization */
pulse( parameter &p, char *side );
void save( double t_start, double t_stop, double t_step );
double field( double t, int pol );
/* double field( double t );
double envelope( double t );*/
};
//////////////////////////////////////////////////////////////////////////////////////////
#endif
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