Fig. 6From: Hybrid photonic crystal fiber in chemical sensingVariation of birefringence as a function of wavelength for benzene (n = 1.366), ethanol (n = 1.354) and water (1.330) when the other optimized parameters d1/Ʌ1 = 0.95, d2/Ʌ2 = 0.96, d1/Ʌ1 = 0.97, db/da = 0.429 were constantBack to article page