set terminal postscript eps color enhanced font "Helvetica,16pt" size 9cm,6cm 

#set terminal pngcairo enhanced font "Helvetica,42pt" size 4000,3000

set output "comparison.eps"
#set output "comparison.png"

# common settings
set logscale xy 10
set format xy "10^{%L}"
set tics scale 2
set tics nomirror
set xr [0.00000001:500] #nanometres
set yr [100:100000000000000000000] #counts/sec
set border linewidth 1

set xlabel "Spectral width {/Symbol Dl} (nm)"
set ylabel "Photoevents per second" offset -0.8,0


#this work
set label "This work" at 0.000001,300000000000000	

#thermal sources
set label "Microspheres^1^3" at 0.00000005,8000000
#set label "MNRAS2016 Sun (filtered)" at 0.45,175000
set label "Hg^1^4" at 0.001,8000
set label "RGG^1^5" at 0.02,8000
set label "EDFA^1^6" at 1,12000000000000000
set label "SLD^1^7" at 20,6000000000000000000

#spdc sources
set label "PPLN^1^8" at 8,60000000
#set label "FWM micro-ring" at 0.0000003,13000000
set label "FWM^1^9" at 0.08,700000
set label "BBO^2^0" at 15,1200000
set label "PPKTP^2^1" at 3,1400

M(x)=800000000000000000*x
set label "8{/Symbol \264}10^1^7 photoevents/sec/nm" at 0.000001,50000000000 rotate by 23.5

N(x)=40000000*x
set label "4{/Symbol \264}10^7 photoevents/sec/nm" at 0.0001,200000 rotate by 23.5

set label "Thermal" at 0.0000005,9000000000000000000
set label "SPDC" at 0.0000005,500000000000000000

plot 'thermal.txt' using 3:2 notitle "Thermal" with points ps 1.5 lw 2 pt 65 lc rgb "red", 'spdc.txt' using 3:2 notitle "SPDC" with points ps 1.5 lw 2 pt 64 lc rgb "blue", M(x) lw 2 lc "black" dt 2 notitle, N(x) lw 2 lc "black" dt 2 notitle

reset