Enhancement of spontaneous emission in Tamm plasmon structures

Abstract

It was theoretically and experimentally demonstrated that in metal/semiconductor Tamm plasmon structures the probability of spontaneous emission can be increased despite losses in metal, and theoretical analysis of experimental results suggested that the enhancement could be as high as one order of magnitude. Tamm plasmon structure with quantum dots has been fabricated and the emission pattern has been measured. Electromagnetic modes of the structure have been analyzed and modification of spontaneous emission rates has been calculated showing a good agreement with experimentally observed emission pattern.

Tamm plasmons for efficient interaction of telecom wavelength photons and quantum dots

“…The light is confined by the metal's negative dielectric constant and by the photonic bandgap of the DBR. The top layer of the dielectric, labelled the spacer layer, must have the higher of the two refractive indices of the DBR [10]. The interaction between these modes and QD emitters compares favourably to other surface-confined optical modes, such as surface plasmon polaritons: the majority of the mode is located within the lossless, photonic material; they have a parabolic dispersion that is within the light cone, so can be excited without requiring momentum-matching components which complicate miniaturization [11]; and they can be excited with both TE and TM polarized light.…”

Purcell Effect and Nonlinear Behavior of the Emission in a Periodic Structure Composed of InAs Monolayers Embedded in a GaAs Matrix

“…The modeling of the optical properties in infinite and finite Bragg quantum well structures (see Figure b) was based on a solution of the dispersion equation for a periodic structure in the case of an infinite periodic structure and the S‐quantization formalism in the case of a structure of finite size …”

“…The finite structure was modeled with the help of the S‐quantization method discussed previously . The method also enables one to calculate the field distribution and spontaneous emission probability using Equation .…”

Tunable hybrid optical modes in a bounded cholesteric liquid crystal with a twist defect

“…In experiments, a Tamm plasmon can be observed as a narrow resonance in the transmittance or reflectance spectrum of a sample. The keen interest in Tamm plasmons is due to their high potential for application in lasing [4] and sensing [5].…”