中国科技论文在线

A two-dimensional square photonic crystal sPCd with magnetically active semiconductor constituents, for example GaAs, is proposed to realize tunable negative refractions. By the Voigt effect, the magnetic-dependent permittivity of the semiconductor, then PC's band structure and equifrequency surface could be tuned by an external magnetic field. Taking a real model into consideration with absorption, the calculation reveals that the refraction could be manipulated from positive to negative, and then to positive by the applied fields. With the tunable negative refraction, tunable superlenses with all angle negative refraction could be established by a relatively small magnetic field s0.262-0.315Td, which might lead to great potential applications in photoelectronic devices.

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2013年06月25日

【期刊论文】Low electrical field induced oriented growth of ferroelectric LiNbO3 thin films and multilayers

陈延峰

，-0001，（）：

-1年11月30日

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2009年01月08日

【期刊论文】Phonon-polaritons in quasiperiodic piezoelectric superlattices

陈延峰， Xue-jin Zhang， Yan-qing Lu， a)， Yong-yuan Zhu， b)， Yan-feng Chen， and Shi-ning Zhu

Appl. Phys. Lett., Vol. 85, No.16, 18 October 2004，-0001，（）：

-1年11月30日

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Phonon-polaritons are studied both theoretically and experimentally in a one-dimensional two-component generalized quasiperiodic piezoelectric superlattice. The experimental observation of phonon-polaritons through dielectric abnormality is carried out at the microwave region. Some potential applications are discussed.

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陈延峰邀请

南京大学，江苏

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