we propose a new generation of unbiased (bias-free) antenna-less cw thz photomixer emitters array made of asymmetric msm gratings with subwavelength pitch, operating in optical near-field regime. we take advantage of the size effects in near-field optics and electrostatics to demonstrate the possibility of enhancing the thz power by four orders of magnitude, as compared with a similar array of ...

The correct presentation of Table 4 is shown in this paper.

INTRODUCTION: This paper describes selected findings from an interdisciplinary research project funded by the UK Department for International Development (January 2000 to April 2003) which was carried out in Delhi and Varanasi by Imperial College, London in partnership with Srishti; Delhi University; Banaras Hindu University, Varanasi; Development Tracks, New Delhi and the Indian Agricultural R...

............................................................................. i Populärvetenskaplig sammanfattning ........................................ iii Preface ............................................................................... v Acknowledgements ............................................................... xi