کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

Developing a superlens with High Resolution using Quantum Dot Nano-Particles

نویسندگان :

Amin Monemian Esfahani¹ Leila Yousefi²

1- دانشگاه تهران 2- دانشگاه تهران

کلمات کلیدی :

Superlens

چکیده :

In this paper, a new method is proposed to develop a superlens with ultra-high resolution and neglectable loss capable to produce sub-wavelength images. In this method, silver coated quantum dot nanoparticles are distributed inside a polymer host to achieve a negative effective permittivity . Using CdSe/CdS quantum dots as cores of the nanoparticles compensate the loss of silver shell resulting in a low-loss superlens. The designed superlens is used for sub-wavelength imaging and its resolution is numerically retrieved. The numerical simulations show a high resolution of λ_0⁄7 which is much beyond the diffraction limit.

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