Skip to main content
. Author manuscript; available in PMC: 2021 Feb 11.
Published in final edited form as: Nat Photonics. 2020 Feb 24;14(5):310–315. doi: 10.1038/s41566-020-0593-1

Figure 3: Optical characteristics of the light-emitting surfaces.

Figure 3:

a, b) Comparison of the emission profile of substrates with a flat bottom reflector (a) and micro-patterned reflecting bottom surface (b). c) Polar plot comparing the two specimens’ angular emission profile extracted as an average of radial emission patterns from (a) and (b). The red and black curves represent data from the samples with patterned and flat bottom reflectors, respectively. d) Experimentally determined emission profile for a sample with patterned bottom reflector in air imaged with a 100x objective (NA = 0.95). The objective’s numerical aperture is marked with the white circle. e) Corresponding modelling results for a Bragg reflector centred at 585nm. f) Polar plot extracted from (d, red) and (e, black). g) Experimentally determined emission profile for a sample with patterned bottom reflector in immersion oil imaged with a 100x objective (NA = 1.3). h) Corresponding modelling results for a Bragg reflector centred at 585nm. i) Polar plot extracted from (g, red) and (h, black).