CN103197374B - Planar two-waveband surface plasmon waveguide based on composite cycle structure - Google Patents
Planar two-waveband surface plasmon waveguide based on composite cycle structure Download PDFInfo
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- CN103197374B CN103197374B CN201310078680.4A CN201310078680A CN103197374B CN 103197374 B CN103197374 B CN 103197374B CN 201310078680 A CN201310078680 A CN 201310078680A CN 103197374 B CN103197374 B CN 103197374B
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Abstract
The invention discloses a planar two-waveband surface plasmon waveguide based on a composite cycle structure. The planar two-waveband surface plasmon waveguide comprises a composite cycle straight-metal grating structure and a composite cycle arc-metal grating structure, wherein the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure are printed on a flexible medium and are in tangent connection. A row of deep grooves A and a row of shallow grooves B are formed in a staggered mode in the same sides of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure. One of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure serves as an input end of the waveguide, the other one of the composite cycle straight-metal grating structure and the composite cycle arc-metal grating structure serves as an output end of the waveguide, and a metallic conducting wire is arranged on the front side of the input end, serves as a feed source, and is used for exciting two-waveband surface waves on the input end. According to the planar two-waveband surface plasmon waveguide based on the composite cycle structure, a plasma straight waveguide and a bent waveguide of an ultrathin flexible thin film based on the composite cycle structure are achieved at the first time in a microwave section. The planar two-waveband surface plasmon waveguide based on the composite cycle structure has the advantages of being simple in structure, convenient to manufacture, and capable of adapting being used in the microwave section.
Description
Technical field
The present invention relates to a kind of waveguiding structure, particularly relate to a kind of be printed on flexible ultra-thin dielectric film, thickness close to zero, based on the Planar dual-band surface plasmon waveguide of compounding period, belong to communication, integrated circuit and Surface wave technology field.
Background technology
Artificial surface plasmon, not by the restriction of diffraction limit, thus can be used for constructing miniaturized device, in sufacing and integrated circuit etc., has important application.The waveguide of existing artificial surface phasmon, is adopt limited thick monocycle structure, is unfavorable for integrated and miniaturization.We utilize a kind of simple method, and the compounding period optical grating construction alternately occurred by designing depth of groove on the surface at super thin metal transmits two waveband surface phasmon.Meanwhile, by adjusting the degree of depth of dark groove and shallow grooves, change the transmission frequency of two waveband.Such device fabrication is convenient, and be easy to integrated, bending loss is little, and all has higher transmission efficiency in two wave bands.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of be printed on flexible ultra-thin dielectric film, thickness close to zero, based on the Planar dual-band surface plasmon waveguide of compounding period.
Technical scheme: for achieving the above object, the technical solution used in the present invention is:
Based on the Planar dual-band surface plasmon waveguide of compounding period, comprise the straight metal grating structure of compounding period and the compounding period circular arc metal grating structure of that be printed on flexible media, tangent connection, phase the same side of the straight metal grating structure of described compounding period and compounding period circular arc metal grating structure is staggeredly equipped with the dark groove A and shallow grooves B of a row; The straight metal grating structure of described compounding period and one of them input end as waveguide of compounding period circular arc metal grating structure, another output terminal as waveguide, the front side of described input end is provided with plain conductor, described plain conductor as feed for encouraging the two waveband surface wave on input end; The straight metal grating structure of described compounding period is for realizing the rectilinear propagation of two waveband surface wave, and described compounding period circular arc metal grating structure is propagated for the curve realizing two waveband surface wave; Described dark groove A is identical with the cycle with the width of shallow grooves B.
In the waveguide of said structure, the width of all dark groove A is identical with the degree of depth, and the width of all shallow grooves B is identical with the degree of depth; Using the radius of the degree of depth of dark groove A and shallow grooves B, width, spacing (i.e. cycle) and compounding period circular arc metal grating structure and radian etc. as basic parameter, the dispersion curve of two waveband can be changed, design meets the two waveband metal grating structure of frequency of operation, utilize periodically dark groove A and periodicity shallow grooves B to be coupled to the surface field of different-waveband respectively, realize two waveband transfer function.
Preferably, described plain conductor is overhanging coaxial inner conductor.
The waveguide of said structure, microwave frequency band can be operated in, can be changed the dispersion curve of two waveband surface wave by basic parameters such as the radius of the degree of depth of the dark groove A and shallow grooves B of reasonable adjusting, width, spacing (i.e. cycle) and compounding period circular arc metal grating structure and radians, design meets the two waveband surface wave of frequency of operation demand; Realized the rectilinear propagation of two waveband surface wave by the straight metal grating structure of compounding period, the curve being realized two waveband surface wave by compounding period circular arc metal grating structure is propagated; Utilize overhanging coaxial inner conductor as metal wire to encourage the two waveband surface wave on input end.
Beneficial effect: the Planar dual-band surface plasmon waveguide based on compounding period provided by the invention, tool has the following advantages: 1) realize based on the plasma straight wave guide of the ultrathin flexible film of compounding period and waveguide bend in microwave section first; 2) surface wave of two wave bands can be strapped in the degree of depth sub-wavelength dimensions around metal tape simultaneously, realize Dual-waveband high-efficiency transmission; 3) the main mould in all corresponding monocycle optical grating construction of the two waveband transmitted, optical grating construction all has stronger constraint ability to the field of two wave bands; 4) bending loss is little, and structure is simple, can realize the two waveband curved waveguide that various bending loss is little, and be convenient to integrated; 5) by the change to basic parameter, can adapt to and microwave, millimeter wave and terahertz wave band.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the dispersion curve of the straight metal grating structure of compounding period;
Fig. 3 is the mode field distribution of two frequency ranges of the straight metal grating structure of compounding period, and wherein Fig. 3 (a) is low-frequency range mode field, and Fig. 3 (b) is high band mode field;
Fig. 4 is near field emulation and the experiment test figure of the straight metal grating structure of compounding period, wherein Fig. 4 (a) analogous diagram that is 5.2GHz, the analogous diagram that Fig. 4 (b) is 11GHz, the experiment test figure that the experiment test figure that Fig. 4 (c) is 5.2GHz, Fig. 4 (d) are 11GHz;
Fig. 5 is the near field analogous diagram of compounding period circular arc metal grating structure, wherein Fig. 5 (a) be 5.2GHz analogous diagram, analogous diagram that Fig. 5 (b) is 10.2GHz;
The bending loss figure of two wave bands when Fig. 6 is the different radian of compounding period circular arc metal grating structure.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Be illustrated in figure 1 a kind of Planar dual-band surface plasmon waveguide based on compounding period, comprise the straight metal grating structure 1 of compounding period and the compounding period circular arc metal grating structure 2 of that be printed on flexible media, tangent connection, phase the same side of the straight metal grating structure of described compounding period 1 and compounding period circular arc metal grating structure 2 is staggeredly equipped with the dark groove A and shallow grooves B of a row; The straight metal grating structure 1 of described compounding period and one of them input end as waveguide of compounding period circular arc metal grating structure 2, another output terminal as waveguide, the front side of described input end is provided with plain conductor 3, described plain conductor 3 as feed for encouraging the two waveband surface wave on input end; The straight metal grating structure 1 of described compounding period is for realizing the rectilinear propagation of two waveband surface wave, and described compounding period circular arc metal grating structure 2 is propagated for the curve realizing two waveband surface wave; Described plain conductor 3 is overhanging coaxial inner conductor.
In this case, all dark groove A are with shallow grooves B except the degree of depth is different, and width and cycle are all identical, and the radian of described compounding period circular arc metal grating structure is 90 °; By the parameter adjustment to dark groove A and shallow grooves B, the dispersion curve distribution of metal surface can be controlled, thus realize the high efficiency of transmission in different operating frequency.The width of note metal grating structure is h, and the degree of depth of dark groove A is the degree of depth of d1, shallow grooves B is d2, and the width of dark groove A and shallow grooves B is w, and the spacing (i.e. cycle) of adjacent dark groove A and adjacent shallow grooves B is p.
Be illustrated in figure 2 the dispersion characteristics schematic diagram of the straight metal grating structure of compounding period 1 when the dark groove A of difference and the shallow grooves B degree of depth
In this case, analyzed the dispersion curve of compounding period metallic film optical grating construction by electromagnetic simulation software, by controlling the degree of depth of dark groove A and shallow grooves B in optical grating construction, the cycle of groove, the width of groove make two wave bands all be operated in the band limits of requirement.
Be illustrated in figure 3 the mode field distribution of different-waveband in the straight metal grating structure 1 of compounding period, as can be seen from the figure, the mode field distribution of two wave bands is all consistent with the main mode distributions of monocycle grating.
Be illustrated in figure 4 in the straight metal grating structure 1 of compounding period, two midband frequency (being respectively 5.2GHz and 11GHz) emulation are near field distribution arrived of experiment test, as can be seen from the figure, the electromagnetic wave of two wave bands can transmit along metallic film grating surface.
Be illustrated in figure 5 in compounding period circular arc metal grating structure 2, the near field distribution that two wave band typical frequencies (being respectively 5.2GHz and 10.2GHz) emulation obtain.
Be illustrated in figure 6 compounding period circular arc metal grating structure 2 in different radian situation, 90 ° of bending losss of two wave bands, as shown in the figure, the bending loss of low-frequency range is lower than the bending loss of high band, but the bending loss of high band still within the acceptable range, in figure, angle of bend differs and is decided to be 90 °, and angle of bend can change arbitrarily, just angle of bend is different, and its loss changes to some extent.
Optical grating construction in this case, can, according to the difference of working frequency range, adopt different processing technology to process, such as Linear cut or photoetching.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. based on the Planar dual-band surface plasmon waveguide of compounding period, it is characterized in that: the straight metal grating structure of compounding period (1) and the compounding period circular arc metal grating structure (2) that comprise that be printed on flexible media, tangent connection, phase the same side of the straight metal grating structure of described compounding period (1) and compounding period circular arc metal grating structure (2) is staggeredly equipped with the dark groove A and shallow grooves B of a row; The straight metal grating structure of described compounding period (1) and one of them input end as waveguide of compounding period circular arc metal grating structure (2), another output terminal as waveguide, the front side of described input end is provided with plain conductor (3), described plain conductor (3) as feed for encouraging the two waveband surface wave on input end; The straight metal grating structure of described compounding period (1) is for realizing the rectilinear propagation of two waveband surface wave, and described compounding period circular arc metal grating structure (2) is propagated for the curve realizing two waveband surface wave; Described dark groove A is identical with the cycle with the width of shallow grooves B.
2. the Planar dual-band surface plasmon waveguide based on compounding period according to claim 1, is characterized in that: described plain conductor (3) is overhanging coaxial inner conductor.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103457009B (en) * | 2013-08-16 | 2016-01-20 | 上海理工大学 | terahertz low-loss curved waveguide |
| CN104241755A (en) * | 2014-03-04 | 2014-12-24 | 上海大学 | Multi-direction wave separator based on surface wave band rejection filters |
| CN104362419B (en) * | 2014-11-28 | 2017-02-01 | 桂林电子科技大学 | Ultra-wideband (UWB) manual surface plasmonpolariton bend waveguide |
| CN104730624B (en) * | 2015-03-31 | 2018-01-16 | 东南大学 | It is a kind of to realize space wave and the device of Terahertz artificial surface phasmon ripple conversion |
| CN106532205A (en) * | 2017-01-04 | 2017-03-22 | 梧州学院 | Bending type microwave band-pass filter |
| CN106785265A (en) * | 2017-01-04 | 2017-05-31 | 梧州学院 | It is a kind of that there are 90 degree of microwave filters of bent angle |
| CN112327407B (en) * | 2020-11-03 | 2022-03-15 | 中航光电科技股份有限公司 | Double-layer polymer waveguide composite veneer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007240361A (en) * | 2006-03-09 | 2007-09-20 | Sekisui Chem Co Ltd | Localized plasmon enhancing sensor |
| CN102297853A (en) * | 2010-05-13 | 2011-12-28 | 精工爱普生株式会社 | Optical device and analyzing apparatus |
| CN102419175A (en) * | 2011-12-15 | 2012-04-18 | 东南大学 | Optical gyro based on flexible surface plasmon polariton waveguide |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000251304A (en) * | 1999-02-26 | 2000-09-14 | Sharp Corp | Optical head device |
| US6834027B1 (en) * | 2000-02-28 | 2004-12-21 | Nec Laboratories America, Inc. | Surface plasmon-enhanced read/write heads for optical data storage media |
| CN102436029A (en) * | 2011-12-27 | 2012-05-02 | 东南大学 | Flexible ultra-long surface plasmon polariton waveguide |
-
2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007240361A (en) * | 2006-03-09 | 2007-09-20 | Sekisui Chem Co Ltd | Localized plasmon enhancing sensor |
| CN102297853A (en) * | 2010-05-13 | 2011-12-28 | 精工爱普生株式会社 | Optical device and analyzing apparatus |
| CN102419175A (en) * | 2011-12-15 | 2012-04-18 | 东南大学 | Optical gyro based on flexible surface plasmon polariton waveguide |
Non-Patent Citations (2)
| Title |
|---|
| Bidirectional surface wave splitters excited by a cylindrical wire;Yong Jin Zhou el al;《OPTICS EXPRESS》;20110304;第19卷(第6期);全文 * |
| Dual-band spoof surface plasmon polaritons based on composite-periodic gratings;Xi Gao et al;《JOURNAL OF PHYSICS D:APPLIED PHYSICS》;20121119;参见摘要，第2页左栏第2段至4页左栏第2段，以及附图1 * |
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