We propose a method of analysis of spontaneous emission of a quantum emitter (an atom. a luminescence center. a quantum dot) inside or in vicinity of a cylinder. At the focus of our method are analytical expressions for the scattering matrix of the cylindrical nanoobject. https://www.markbroyard.com/flash-offer-36-meter-4-teilige-interlock-ettore-rea-c-h-teleskopstange-for-sale-limited-save/