Newton's Rings in Polarised Light

Polarisation Vision: Beetles See Circularly Polarised Light

It has long been known that the iridescent cuticle of many scarab beetles reflects circularly polarised light. It now turns out that scarabs can also see this light, potentially using it as a covert visual signal.

Light-Harvesting Complex: Rings of light

The atomic structure of the bacterial light-harvesting complex helps to explain how the energy of sunlight is efficiently absorbed and transferred between bacteriochlorophyll molecules towards the reaction centre.

Polarised light microscopy: principles and practice for the rheumatologist.

Polarised light microscopy is used to detect and measure matter (in fluids, tissues, or cells) that has crystalline or crystalline-like properties. Because light has electromagnetic properties, it can be influenced by the electromagnetic properties of material through .which it passes. In many materials this influence is equal in whatever direction the light is vibrating. But crystalline materi...

Scheduling Light-trails in WDM Rings

We consider the problem of scheduling communication on optical WDM (wavelength division multiplexing) networks using the light-trails technology. We seek to design scheduling algorithms such that the given transmission requests can be scheduled using minimum number of wavelengths (optical channels). We provide algorithms and close lower bounds for two versions of the problem on an n processor l...

Light rings and light points of boson stars