An Operating Reflector

An Inexpensive Scheffler Reflector for Developing Nations

Light Management in Tandem Cells by an Intermediate Reflector Layer

Recently, it was demonstrated that the insertion of TCO layers between the compound cells of tandem cells allows a shift of current generation from the bottom to the top cell [1]. This concept is particularly useful to increase the performance of a-Si:H/μc-Si:H tandem cells. In this paper we analyse experimental and optical modelling results of very different tandem cell structures in order to ...

Dielectric omnidirectional visible reflector.

We demonstrate the fabrication of an all-dielectric omnidirectional mirror for visible frequencies. The dielectric reflector consists of a stack of 19 alternating layers of tin (IV) sulfide and silica. Using a combination of thermal evaporation (for tin sulfide) and thick electron-beam evaporation (for silica), we have achieved a refractive-index contrast of 2.6/1.46 , one of the highest refrac...

An Intensity-Modulated Optical Fibre Displacement Sensor with Convex Reflector

A novel intensity-modulated optical fibre displacement sensor with convex reflector technology is described. A common form of the intensity-modulated optical fibre sensor performs its measurement by making use of a pair of straight optical fibres with a plane reflector. The reflected optical signal intensity changes as a function of change in displacement. This paper describes an alternative se...

Improving limited-view photoacoustic tomography with an acoustic reflector.

The versatility and real-time imaging capability of commercial linear array transducers make them widely used in clinical ultrasound and photoacoustic imaging. However, they often suffer from limited detection view. For instance, acoustic waves traveling at a grazing angle to the transducer surface are difficult to detect. In this letter, we propose a simple and easy approach to ameliorate this...