How can plot this curve in matlab ?

I want to reproduce same figure but i faild to make it. Coulc you please help me.

Thank you for your time.

Please see the curve attached in JPG

Answer 1

[Star Strider]

This appears to approximate it:

k = linspace(0,1);
Finesse = 5./k;

figure
plot(k, Finesse)

[Fabrice shao]

This is amazing answer you have saved my life today. God bless you

[Star Strider]

Thank you!