/* 
 * METRIC-Application:
 * A dielectric ring, analysis of whispering gallery modes
 */

#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include"metric.h"

#define Pol    TE
#define Pnb    1.0    // background refractive index 
#define Png    1.5    // core refractive index 
#define Pd     0.5    // core thickness /mum
#define PR     10     // ring radius, outer rim /mum 

#define Wlr0   1.45   // wavelength range of interest
#define Wlr1   1.65

#define DW     14.0   // display window, x-extension [-DW, DW]
                      // display window, z-extension [-DW, DW]

/* ------------------------------------------------------------------------ */

/* container for the radial dielectric profile, 
   interface positions relative to the cavity radius */
Waveguide rwgdef()
{
	Waveguide rwg(1);
	rwg.hx(1) =  0.0; 
	rwg.hx(0) =  -Pd; 
	rwg.n(2) = Pnb;
	rwg.n(1) = Png;
	rwg.n(0) = Pnb;
	rwg.lambda = 0.5*(Wlr0+Wlr1);

	return rwg;
}

/* ------------------------------------------------------------------------ */

/* analysis of whispering gallery modes */
int main()
{
	WGModeArray wgm;
	Waveguide rwg = rwgdef();

 	wgmsolve(rwg, PR, 0.0, 0.0, Pol, 0.5*(Wlr0+Wlr1), 1, -1, -1, wgm, 1);

//	wgmsolve(rwg, PR, 0.0, 0.0, Pol, 0.5*(Wlr0+Wlr1), 1, 50, 10, wgm, 0);
//	wgmsolve(rwg, PR, 0.0, 0.0, Pol, Interval(Wlr0, Wlr1), 1, 10, 10, wgm, 0);
//	for(int j=0; j<=wgm.num-1; ++j) wgm(j).reverse();

	for(int j=0; j<=wgm.num-1; ++j) wgm(j).discretize(0.0, PR+DW, 500);

	for(int j=0; j<=wgm.num-1; ++j)
	{
		Complex o = wgm(j).c_omega();
                double l = val_lambda(o.re);
                fprintf(stderr, "[%d] %s: omega = %g + i %g,  lambda_r = %g,  Q = %g,  FWHM_lambda = %g\n", j, wgm(j).ids, o.re, o.im, l, theQ(o), FWHM_lambda(o));
		
		Fcomp cp = principalcomp(Pol);
		wgm(j).plot(cp, REP, -DW, DW, -DW, DW, 350, 350, dig10(j), dig1(j));
		wgm(j).plot(cp, MOD, -DW, DW, -DW, DW, 350, 350, dig10(j), dig1(j));
		wgm(j).viewer(-DW, DW, -DW, DW, 350, 350, dig10(j), dig1(j));
/*
		Cvector  p(1001);
                Dvector rv(1001);
                for(int ri=0; ri<=1000; ++ri)
                {
                        double r = 3.0+((double)ri)/1000.0*(PR+10.0);
                        rv(ri) = r;
                         p(ri) = wgm(j).profile(r);
                }
                char name[10] = "mprf____";
                name[4] = dig10(j);
                name[5] = dig1(j);
                name[6] = 'r'; name[7] = 'e'; toxyf(name, rv, p.re());
                name[6] = 'i'; name[7] = 'm'; toxyf(name, rv, p.im());
                name[6] = 'a'; name[7] = 'b'; toxyf(name, rv, p.abs());
*/
	}

	fprintf(stderr, "\nOk.\n");
	return 0; 
}