Full text loading...
(Color online) Layout and structural properties of a (Zn,Mg)O MC. (a) Schematic sample layout (not true to scale). (b) AFM image of a (1.5 μm)2 sized region of the MC surface. (c) Cross section SEM image (backscattered electrons) of lower DBR layers.
(Color online) Angle resolved reflectivity, transmission and absorption spectra of the MC in TE polarization at T = 5 K. Experimental and simulated results are shown in (a)–(c), and (d)–(f), respectively. Absorption data are multiplied by a factor of 2 for better visibility.
Transition from strong to weak exciton-photon coupling in the MC. (a) Temperature dependent excitonic absorption of the bare ZnO MQW (sample B) in steps of 50 K. (b) Inhomogeneous (2γ i, dashed-dotted line) and homogeneous (2γ h, dashed line) Voigt model linewidths to describe the bare MQW absorption, as well as splitting Ωr between the MC polariton branches at resonance (circles) vs. T. (c-e) Angle resolved MC absorption spectra in the vicinity of the exciton-photon resonance at T = 5 K, 100 K, and 200 K, respectively. The dashed lines mark the uncoupled exciton resonance.
(Color online) MC absorption at 300 K. (a) Experimental results. (b) TMM calculation. (c) TMM for a MC containing 3 times more QWs. The dashed lines indicate the uncoupled exciton resonance; the color scale is identical to Fig. 2(c).
Article metrics loading...