Estimates for localised transverse electric modes in multi-structured crystal fibres
نویسندگان
چکیده
منابع مشابه
Transverse modes of photonic crystal vertical-cavity lasers
The control of lateral mode operation using a photonic crystal in a vertical-cavity surface-emitting laser ~VCSEL! is analyzed and confirmed experimentally. By controlling design parameters of the photonic crystal pattern, we have produced photonic crystal VCSELs that operate in higher order defect modes in addition to the fundamental defect mode. The transverse modal behavior is consistent wit...
متن کاملModels for guidance in kagome-structured hollow-core photonic crystal fibres.
We demonstrate by numerical simulation that the general features of the loss spectrum of photonic crystal fibres (PCF) with a kagome structure can be explained by simple models consisting of thin concentric hexagons or rings of glass in air. These easily analysed models provide increased understanding of the mechanism of guidance in kagome PCF, and suggest ways in which the high-loss resonances...
متن کاملLocalised bending modes in split ring resonators
We present band diagrams for in-plane elastic waves propagating within a doubly periodic structure involving Split Ring Resonators. From the Navier equations we derive that the lowest resonant frequencies are associated with localised bending modes solutions of a fourth order differential equation in thin bridges, which are responsible for the appearance of a low frequency stop band. Potential ...
متن کاملLocalised knife waves in a structured interface
We consider a Mode III lattice with an interface layer where the dynamic crack growth is caused by a localised sinusoidal wave. In the wave–fracture scenario, the ‘feeding wave’ (here also called the knife wave) delivers energy to the moving crack front, while the dissipative waves carry a part of this energy away from the front. The questions addressed here are: What are the conditions of exis...
متن کاملCounting Modes in Optical Fibres with Leaky Modes
The number of guided modes in optical fibres is an important aspect of their design and characterisation. Some optical fibres, such as microstructured fibres and Bragg fibres, have no strictly bound modes in the same sense as in conventional step and graded index fibres. All modes in these fibres are leaky so what exactly becomes regarded as a mode becomes important.. We propose a method for co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physica B: Condensed Matter
سال: 2007
ISSN: 0921-4526
DOI: 10.1016/j.physb.2006.12.052