Table 1 Collection efficiencies calculated with a detection from the superstrate using a objective with NA = 0.6 and with a detection from the glass substrate with a objective opened at 1.3.

From: Spatially uniform enhancement of single quantum dot emission using plasmonic grating decoupler

 

glass substrate

gold film

grating decouplera

ηrefl (NA = 0.6)

4.5%

7.6%

23%

ηtrans (NA = 1.3)

68%

54%

26%

  1. The emitter is placed 10 nm above a glass substrate or a 50 nm gold film. The emission wavelength is λ = 670 nm.
  2. aQD 1 nm above the grating, centered between 2 ridges.
Back to article page