10 dB emission suppression in a structured low index medium

Journal
Journal of the Optical Society of America / B  
Volume
40
Issue
4
Start Page
900
End Page
904
Citation
Journal of the Optical Society of America B: Optical Physics 40 (4): 900-904 (2023-04)
Publisher DOI
10.1364/JOSAB.477576
Scopus ID
2-s2.0-85152188479
Significant suppression of radiation in3Dstructured media with small refractive indices of 1.4-1.6, such as glass or polymers, is a desirable feature yet to be obtained.We present here quasiperiodic3Dstructures with a homogeneous distribution ofBragg peaks on a sphere in reciprocal space obtained by an overlap of multiple gratings. Simulations on 3D structures revealed a limitation of emission suppression contrasting from theoretical predictions. The effect of number of gratings and refractive index contrast on the obtained suppression is investigated.We demonstrate an almost refractive index independent-10 dB suppression of emission for a refractive index as low as 1.30.
DDC Class
600: Technology