Fig. 1. TF coating

Fig. 2. Transmittance of coating TF versus wavelength

Fig. 3. Reflectance of coating TF versus wavelength

Fig. 4. Air-gap FP cavity

Fig. 5. Transmittance of coating FP versus wavelength

Fig. 6. Reflectance of coating FP versus wavelength

Fig. 7. Optical comb filter

Fig. 8. Optical path diagram

Fig. 9. Transmittance of simulation and samples versus wavelength

Fig. 10. Variation of transmittance with incident angle

Fig. 11. Variation of transmittance of simulation and samples with wavelength