Microwave liquid crystal wavelength selector

被引：40

作者：

Yang, FZ ^{[1
]}

Sambles, JR ^{[1
]}

机构：

[1] Univ Exeter, Sch Phys, Thin Film Photon Grp, Exeter EX4 4QL, Devon, England

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 22期

关键词：

D O I：

10.1063/1.1419240

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The combined use of a zero-order grating with liquid crystals to control microwaves is presented. A nematic liquid crystal is aligned in the 75 mum gaps of a grating comprised of 1-mm-thick aluminum slats. A set of resonant transmission frequencies is recorded for microwaves incident on this structure with their electric field perpendicular to the slats. These resonances are due to the excitation of coupled surface plasmons. A voltage applied between adjacent pairs of slats causes the liquid crystal to realign, allowing sensitive control of the transmitted microwave frequencies. (C) 2001 American Institute of Physics.

引用

页码：3717 / 3719

页数：3

共 14 条

[11] Stationary surface plasmons on a zero-order metal grating
Sobnack, MB
Tan, WC
Wanstall, NP
Preist, TW
Sambles, JR
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (25) : 5667 - 5670
[12] Surface-plasmon-enhanced transmission through hole arrays in Cr films
Thio, T
Ghaemi, HF
Lezec, HJ
Wolff, PA
Ebbesen, TW
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1999, 16 (10) : 1743 - 1748
[13] Standing-wave surface-plasmon resonances with overhanging zero-order metal gratings
Wanstall, NP
Preist, TW
Tan, WC
Sobnack, MB
Sambles, JR
[J]. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1998, 15 (11): : 2869 - 2876
[14] Selective transmission through very deep zero-order metallic gratings at microwave frequencies
Went, HE
Hibbins, AP
Sambles, JR
Lawrence, CR
Crick, AP
[J]. APPLIED PHYSICS LETTERS, 2000, 77 (18) : 2789 - 2791

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