Recent Advances in Optics (RAO): Contribution of D. Narayana Rao in Optics and Photonics research in India

Recent advances in transformation optics.

Within the past a few years, transformation optics has emerged as a new research area, since it provides a general methodology and design tool for manipulating electromagnetic waves in a prescribed manner. Using transformation optics, researchers have demonstrated a host of striking phenomena and devices; many of which were only thought possible in science fiction. In this paper, we review the ...

the investigation of research articles in applied linguistics: convergence and divergence in iranian elt context

چکیده ندارد.

: metadiscourse in introduction sections of applied linguistics and physics research articles: exploring variation in frequency and type

abstract in written mode of language, metadiscourse markers are used commonly to help writers in general and academic writers in particular to produce coherent and professional texts. the purpose of the present study was to compare introduction sections of applied linguistics and physics articles regarding their use of interactive and interactional metadiscourse markers based on the model pro...

Optics & Photonics News - April 2011

Recent Advances in Retinal Imaging With Adaptive Optics

A daptive optics imaging systems use active optical elements to compensate for aberrations in the optical path between the camera and the object being imaged. In 1953, Babcock first suggested the use of adaptive optics to improve ground-based astronomy, where the rapidly changing atmosphere can significantly degrade the image quality of a ground-based telescope system. 1 Of course the use of ad...