CN204142994U - Dual U-shaped terahertz polarization beam splitter - Google Patents
Dual U-shaped terahertz polarization beam splitter Download PDFInfo
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- CN204142994U CN204142994U CN201420683388.5U CN201420683388U CN204142994U CN 204142994 U CN204142994 U CN 204142994U CN 201420683388 U CN201420683388 U CN 201420683388U CN 204142994 U CN204142994 U CN 204142994U
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- rectangular flat
- flat
- circular arc
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- polarization beam
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Abstract
The utility model discloses a kind of dual U-shaped terahertz polarization beam splitter.It comprises signal input part, the first signal output part, secondary signal output terminal, substrate; Upper surface of base plate is provided with the first rectangular flat, the second rectangular flat, the 3rd rectangular flat, the 4th rectangular flat, the first circular arc is dull and stereotyped, the second circular arc is dull and stereotyped, three-arc shape is dull and stereotyped; First rectangular flat is connected with the first circular arc flat board with the right side of the second rectangular flat, be placed with five the second circular arcs between first circular arc flat board and three-arc shape flat board dull and stereotyped, the 3rd rectangular flat is connected with three-arc shape flat board with the left side of the 4th rectangular flat.Signal inputs from signal input part, and the first signal output part exports TM ripple, secondary signal output terminal exports TE ripple.The utility model has simple and compact for structure, and size is little, and beam splitting rate is high, is convenient to the advantages such as processing.
Description
Technical field
The utility model relates to terahertz polarization beam splitter, particularly relates to a kind of dual U-shaped terahertz polarization beam splitter.
Background technology
In recent years, the THz wave on electromagnetic wave spectrum between the millimeter wave developing quite maturation and infrared light is undoubtedly a brand-new research field.THz wave frequency 0.1 ~ 10THz, wavelength is 30 μm ~ 3mm.For a long time, produce and detection method owing to lacking effective THz wave, compare with optical technology with traditional microwave technology, people are very few to the understanding of this wave band properties of electromagnetic radiation, to such an extent as to this wave band becomes the Terahertz space in electromagnetic wave spectrum.Along with the breakthrough of terahertz emission source and Detection Techniques, the advantageous characteristic of Terahertz uniqueness be found and detect in material science, detection of gas, biology and medical science, to communicate etc. in show huge application prospect.Can say that Terahertz Technology science is not only the important foundation problem in scientific technological advance, be again the great demand of generation information industry and basic science development.Efficient terahertz emission source and ripe detection technique are the most important condition promoting Terahertz Technology scientific development and application, but the widespread use of Terahertz Technology be unable to do without the support meeting the practical function element that different application field requires.In numerous application systems such as Terahertz communication, multispectral imaging, physics, chemistry, be urgent to the demand of the function elements such as terahertz waveguide, switch, polarization beam apparatus, filtering and coupling.
Terahertz polarization beam splitter is the important THz wave function element of a class, and terahertz polarization beam splitter has become focus and the difficult point of research both at home and abroad in recent years.But existing terahertz polarization beam splitter mostly also exists, and complex structure, beam splitting rate are low, high in cost of production shortcomings, so the terahertz polarization beam splitter that research structure is simple, beam splitting rate is high, cost is low is significant.
Utility model content
The utility model provides a kind of dual U-shaped terahertz polarization beam splitter, and technical scheme is as follows:
Dual U-shaped terahertz polarization beam splitter comprises signal input part, the first signal output part, secondary signal output terminal, substrate; Upper surface of base plate is provided with the first rectangular flat, the second rectangular flat, the 3rd rectangular flat, the 4th rectangular flat, the first circular arc is dull and stereotyped, the second circular arc is dull and stereotyped, three-arc shape is dull and stereotyped; First rectangular flat is connected with the first circular arc flat board with the right side of the second rectangular flat, five the second circular arcs are placed with dull and stereotyped between first circular arc flat board and three-arc shape flat board, 3rd rectangular flat is connected with three-arc shape flat board with the left side of the 4th rectangular flat, signal input part is provided with on the left of first rectangular flat, the first signal output part is provided with on the left of second rectangular flat, secondary signal output terminal is provided with on the right side of 4th rectangular flat, signal inputs from signal input part, and the first signal output part exports TM ripple, secondary signal output terminal exports TE ripple.
The length of described substrate is 950 ~ 960 μm, and width is 300 ~ 310 μm, and thickness is 25 ~ 30 μm.The first described rectangular flat and the second rectangular flat, the 3rd rectangular flat, the 4th rectangular flat dimensional parameters are identical, and length is 150 ~ 155 μm, and width is 30 ~ 35 μm, and thickness is 30 ~ 40 μm.The first described circular arc is dull and stereotyped identical with three-arc shape panel size parameter, and corresponding central angle is 180 °, and external radius is 75 ~ 80 μm, and width is 30 ~ 35 μm.The dull and stereotyped external radius of the second described circular arc is 35 ~ 40 μm, and width is 20 ~ 25 μm.The material of described substrate is silicon dioxide.The first described rectangular flat, the second rectangular flat, the 3rd rectangular flat, the 4th rectangular flat, dull and stereotyped, the second circular arc flat board, three-arc shape flat board the material of the first circular arc are High Resistivity Si.
The utility model has simple and compact for structure, and size is little, and beam splitting rate is high, is convenient to the advantages such as processing.
Accompanying drawing illustrates:
Fig. 1 is the three-dimensional structure schematic diagram of dual U-shaped terahertz polarization beam splitter;
Fig. 2 is the two-dimensional structure schematic diagram of dual U-shaped terahertz polarization beam splitter;
Fig. 3 is TM, TE ripple transmittance graph of the first signal output part of dual U-shaped terahertz polarization beam splitter;
Fig. 4 is TM, TE ripple transmittance graph of the secondary signal output terminal of dual U-shaped terahertz polarization beam splitter.
Embodiment
As shown in Fig. 1 ~ 2, dual U-shaped terahertz polarization beam splitter comprises signal input part 1, first signal output part 2, secondary signal output terminal 3, substrate 4, substrate 4 upper surface is provided with the first rectangular flat 5, second rectangular flat 7, the 3rd rectangular flat 9, the 4th rectangular flat 11, first circular arc flat board 6, second circular arc flat board 8, three-arc shape flat board 10, first rectangular flat 5 is connected with the first circular arc dull and stereotyped 6 with the right side of the second rectangular flat 7, five the second circular arc flat boards 8 are placed with between first circular arc dull and stereotyped 6 and three-arc shape flat board 10, 3rd rectangular flat 9 is connected with three-arc shape dull and stereotyped 10 with the left side of the 4th rectangular flat 11, signal input part 1 is provided with on the left of first rectangular flat 5, the first signal output part 2 is provided with on the left of second rectangular flat 7, secondary signal output terminal 3 is provided with on the right side of 4th rectangular flat 11, signal inputs from signal input part 1, first signal output part 2 exports TM ripple, secondary signal output terminal 3 exports TE ripple.
The length of described substrate 4 is 950 ~ 960 μm, and width is 300 ~ 310 μm, and thickness is 25 ~ 30 μm.The first described rectangular flat 5 and the second rectangular flat 7, the 3rd rectangular flat 9, the 4th rectangular flat 11 dimensional parameters are identical, and length is 150 ~ 155 μm, and width is 30 ~ 35 μm, and thickness is 30 ~ 40 μm.Described the first circular arc dull and stereotyped 6 is identical with dull and stereotyped 10 dimensional parameters of three-arc shape, and corresponding central angle is 180 °, and external radius is 75 ~ 80 μm, and width is 30 ~ 35 μm.Dull and stereotyped 8 external radiuss of the second described circular arc are 35 ~ 40 μm, and width is 20 ~ 25 μm.The material of described substrate 4 is silicon dioxide.The material of the first described rectangular flat 5, second rectangular flat 7, the 3rd rectangular flat 9, the 4th rectangular flat 11, first circular arc flat board 6, second circular arc flat board 8, three-arc shape flat board 10 is High Resistivity Si.
Embodiment 1
The length of the substrate of dual U-shaped terahertz polarization beam splitter is 950 μm, and width is 300 μm, and thickness is 25 μm.First rectangular flat and the second rectangular flat, the 3rd rectangular flat 9, the 4th rectangular flat 11 dimensional parameters are identical, and length is 150 μm, and width is 30 μm, and thickness is 30 μm.First circular arc dull and stereotyped 6 is identical with dull and stereotyped 10 dimensional parameters of three-arc shape, and corresponding central angle is 180 °, and external radius is 75 μm, and width is 30 μm.Dull and stereotyped 8 external radiuss of second circular arc are 35 μm, and width is 20 μm.The material of substrate 4 is silicon dioxide.The material of the first rectangular flat 5, second rectangular flat 7, the 3rd rectangular flat 9, the 4th rectangular flat 11, first circular arc flat board 6, second circular arc flat board 8, three-arc shape flat board 10 is High Resistivity Si.The TM ripple of the first signal output part of dual U-shaped terahertz polarization beam splitter, TE ripple transmittance graph are as shown in Figure 3, in 0.7 ~ 1.7THz band limits, TM ripple peak power output (insertion loss) for 0.07dB, TE ripple minimum output power (extinction ratio) be 32dB.The TE ripple of secondary signal output terminal, TM ripple transmission curve as shown in Figure 4, in 0.7 ~ 1.7THz band limits, TE ripple peak power output (insertion loss) for 0.09dB, TM ripple minimum output power (extinction ratio) be 37dB.
Claims (7)
1. a dual U-shaped terahertz polarization beam splitter, is characterized in that comprising signal input part (1), the first signal output part (2), secondary signal output terminal (3), substrate (4), substrate (4) upper surface is provided with the first rectangular flat (5), the second rectangular flat (7), the 3rd rectangular flat (9), the 4th rectangular flat (11), the first circular arc flat board (6), the second circular arc flat board (8), three-arc shape flat board (10), first rectangular flat (5) is connected with the first circular arc flat board (6) with the right side of the second rectangular flat (7), five the second circular arc flat boards (8) are placed with between first circular arc flat board (6) and three-arc shape flat board (10), 3rd rectangular flat (9) is connected with three-arc shape flat board (10) with the left side of the 4th rectangular flat (11), first rectangular flat (5) left side is provided with signal input part (1), second rectangular flat (7) left side is provided with the first signal output part (2), 4th rectangular flat (11) right side is provided with secondary signal output terminal (3), signal inputs from signal input part (1), first signal output part (2) exports TM ripple, secondary signal output terminal (3) exports TE ripple.
2. a kind of dual U-shaped terahertz polarization beam splitter according to claim 1, it is characterized in that the length of described substrate (4) is 950 ~ 960 μm, width is 300 ~ 310 μm, and thickness is 25 ~ 30 μm.
3. a kind of dual U-shaped terahertz polarization beam splitter according to claim 1, it is characterized in that described the first rectangular flat (5) and the second rectangular flat (7), the 3rd rectangular flat (9), the 4th rectangular flat (11) dimensional parameters are identical, length is 150 ~ 155 μm, width is 30 ~ 35 μm, and thickness is 30 ~ 40 μm.
4. a kind of dual U-shaped terahertz polarization beam splitter according to claim 1, it is characterized in that the first described circular arc flat board (6) is identical with three-arc shape flat board (10) dimensional parameters, corresponding central angle is 180 °, external radius is 75 ~ 80 μm, and width is 30 ~ 35 μm.
5. a kind of dual U-shaped terahertz polarization beam splitter according to claim 1, it is characterized in that the second described circular arc flat board (8) external radius is 35 ~ 40 μm, width is 20 ~ 25 μm.
6. a kind of dual U-shaped terahertz polarization beam splitter according to claim 1, is characterized in that the material of described substrate (4) is silicon dioxide.
7. a kind of dual U-shaped terahertz polarization beam splitter according to claim 1, it is characterized in that described the first rectangular flat (5), the second rectangular flat (7), the 3rd rectangular flat (9), the 4th rectangular flat (11), the first circular arc flat board (6), the second circular arc flat board (8), three-arc shape flat board (10) material be High Resistivity Si.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420683388.5U CN204142994U (en) | 2014-11-14 | 2014-11-14 | Dual U-shaped terahertz polarization beam splitter |
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| CN201420683388.5U CN204142994U (en) | 2014-11-14 | 2014-11-14 | Dual U-shaped terahertz polarization beam splitter |
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| CN204142994U true CN204142994U (en) | 2015-02-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018095A (en) * | 2014-04-29 | 2015-11-04 | 厦门通士达照明有限公司 | Method for improving climbing time of energy saving lamp |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018095A (en) * | 2014-04-29 | 2015-11-04 | 厦门通士达照明有限公司 | Method for improving climbing time of energy saving lamp |
| CN105018095B (en) * | 2014-04-29 | 2018-11-13 | 厦门通士达照明有限公司 | A method of improving energy-saving lamp time-to-climb |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20151114 |
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| EXPY | Termination of patent right or utility model |