CN204166160U - Crocodile mouth shape terahertz polarization beam splitter - Google Patents
Crocodile mouth shape terahertz polarization beam splitter Download PDFInfo
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- CN204166160U CN204166160U CN201420683386.6U CN201420683386U CN204166160U CN 204166160 U CN204166160 U CN 204166160U CN 201420683386 U CN201420683386 U CN 201420683386U CN 204166160 U CN204166160 U CN 204166160U
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- rectangular flat
- polarization beam
- beam splitter
- isosceles trapezoid
- flat
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Abstract
The utility model discloses a kind of crocodile mouth shape 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 5th rectangular flat, the first isosceles trapezoid is dull and stereotyped, the second isosceles trapezoid is dull and stereotyped; Signal inputs from signal input part, and the first signal output part exports TM ripple, secondary signal output terminal exports TE ripple.Second rectangular flat, the 3rd rectangular flat play multimode interference effect thus realize the polarization beam splitting effect to terahertz signal.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 crocodile mouth shape terahertz polarization beam splitter.
Background technology
Terahertz Technology is a kind of new technology that twentieth century grows up the end of the eighties.Terahertz frequency domain refers to that frequency is at 0.1THz ~ 10THz, the frequency range of THz wave uniqueness covers molecular vibration and the rotation spectrum of most macromolecular substances between microwave frequency band and optical frequencies, therefore most macromolecular substances all has obvious dactylogram characteristic at its absorption spectra of Terahertz frequency range, reflectance spectrum or emission spectrum, and this point is not available for microwave.In addition, THz wave can penetrate most material to some extent, and this feature is not available for infrared radiation.These features determine the value that Terahertz Technology exists, growing THz wave technology all has great scientific value and wide application prospect in astronomy, biomedicine, safety and environmental monitoring, imaging, broadband wireless communications and radar etc., wherein the THz wave communication technology has the characteristic of millimetre-wave attenuator and optical communication, can be applied to the aspects such as indoor local area network communication.Research institution in the world about THz wave emerges in multitude, and achieves a lot of achievement in research, and Terahertz Technology will be the focus of extensively research in following a very long time world wide.
Recent domestic launches gradually for the research of THz wave function element, terahertz polarization beam splitter is a kind of very important THz wave device, for manipulation, control the THz wave in THz wave system, current lot of domestic and international scientific research institution is all devoted to the research of this respect and makes some progress, but terahertz polarization beam splitter is as its existing achievement in research of Focal point and difficult point in the research of THz wave function element and be in progress also very limited, existing terahertz polarization beam splitter often complex structure, bulky, be difficult to make and expensive, therefore be necessary that design is a kind of simple and compact for structure, volume is little, quality is light, the terahertz polarization beam splitter that beam splitting efficiency is high carrys out satisfied following THz wave technology application needs.Terahertz polarization beam splitter research is to promoting that the research of THz wave function element has indispensable significance.
Utility model content
The utility model provides a kind of crocodile mouth shape terahertz polarization beam splitter, and technical scheme is as follows:
Crocodile mouth shape 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 5th rectangular flat, the first isosceles trapezoid is dull and stereotyped, the second isosceles trapezoid is dull and stereotyped; First rectangular flat, the second rectangular flat, the 3rd rectangular flat are connected in turn, on the right side of 3rd rectangular flat, top is connected with the first isosceles trapezoid flat board, 3rd rectangular flat lower right-hand side is connected with the second isosceles trapezoid flat board, be connected with the 4th rectangular flat on the right side of first isosceles trapezoid flat board, be connected with the 5th rectangular flat on the right side of the second isosceles trapezoid flat board; Be provided with signal input part on the left of first rectangular flat, be provided with on the right side of the 4th rectangular flat on the right side of the first signal output part, the 5th rectangular flat and be provided with secondary signal output terminal.Signal inputs from signal input part, and the first signal output part exports TM ripple, secondary signal output terminal exports TE ripple.Second rectangular flat, the 3rd rectangular flat play multimode interference effect thus realize the polarization beam splitting effect to terahertz signal.
The length of described substrate is 380 ~ 390 μm, and width is 180 ~ 190 μm, and thickness is 25 ~ 30 μm.The first described rectangular flat length is 80 ~ 90 μm, and width is 50 ~ 55 μm, and thickness is 30 ~ 40 μm.The second described rectangular flat length is 100 ~ 110 μm, and width is 35 ~ 40 μm, and thickness is 30 ~ 40 μm.The 3rd described rectangular flat length is 150 ~ 160 μm, and width is 130 ~ 135 μm, and thickness is 30 ~ 40 μm.The first described isosceles trapezoid is dull and stereotyped identical with the second isosceles trapezoid panel size, and upper base is 35 ~ 40 μm, and going to the bottom is 50 ~ 55m, and height is 80 ~ 85 μm, and thickness is 30 ~ 40 μm.The 4th described rectangular flat and the 5th rectangular flat measure-alike, length is 35 ~ 40 μm, and width is 30 ~ 35 μm, and thickness is 30 ~ 40 μm.The material of described substrate is silicon dioxide.The first described rectangular flat, the second rectangular flat, the 3rd rectangular flat, the first trapezoidal flat board, the 4th rectangular flat, the second isosceles trapezoid material that is dull and stereotyped, the 5th rectangular flat 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 crocodile mouth shape terahertz polarization beam splitter;
The energy profile that Fig. 2 is the input signal of crocodile mouth shape terahertz polarization beam splitter when being TM ripple;
The energy profile that Fig. 3 is the input signal of crocodile mouth shape terahertz polarization beam splitter when being TE ripple;
Fig. 4 is TM, TE ripple output power curve of the first signal output part of crocodile mouth shape terahertz polarization beam splitter;
Fig. 5 is TM, TE ripple output power curve of the secondary signal output terminal of crocodile mouth shape terahertz polarization beam splitter.
Embodiment
As shown in Figure 1, crocodile mouth shape terahertz polarization beam splitter comprises signal input part 1, first signal output part 9, secondary signal output terminal 10, substrate 11; Substrate 11 upper surface is provided with the first rectangular flat 2, second rectangular flat 3, the 3rd rectangular flat 4, the 4th rectangular flat 6, the 5th rectangular flat 8, first isosceles trapezoid flat board 5, second isosceles trapezoid flat board 7; First rectangular flat 2, second rectangular flat 3, the 3rd rectangular flat 4 are connected in turn, on the right side of 3rd rectangular flat 4, top is connected with the first isosceles trapezoid dull and stereotyped 5,3rd rectangular flat 4 lower right-hand side is connected with the second isosceles trapezoid dull and stereotyped 7, be connected with the 4th rectangular flat 6 on the right side of first isosceles trapezoid flat board 5, be connected with the 5th rectangular flat 8 on the right side of the second isosceles trapezoid flat board 7; Be provided with signal input part 1 on the left of first rectangular flat 2, be provided with on the right side of the 4th rectangular flat 6 on the right side of first signal output part 9, the 5th rectangular flat 8 and be provided with secondary signal output terminal 10.Signal inputs from signal input part 1, and the first signal output part 9 exports TM ripple, secondary signal output terminal 10 exports TE ripple.
The length of described substrate 11 is 380 ~ 390 μm, and width is 180 ~ 190 μm, and thickness is 25 ~ 30 μm.The first described rectangular flat 2 length is 80 ~ 90 μm, and width is 50 ~ 55 μm, and thickness is 30 ~ 40 μm.The second described rectangular flat 3 length is 100 ~ 110 μm, and width is 35 ~ 40 μm, and thickness is 30 ~ 40 μm.The 3rd described rectangular flat 4 length is 150 ~ 160 μm, and width is 130 ~ 135 μm, and thickness is 30 ~ 40 μm.Described first isosceles trapezoid dull and stereotyped 5 and the second isosceles trapezoid dull and stereotyped 7 measure-alike, upper base is 35 ~ 40 μm, and going to the bottom is 50 ~ 55m, and height is 80 ~ 85 μm, and thickness is 30 ~ 40 μm.The 4th described rectangular flat 6 and the 5th rectangular flat 8 measure-alike, length is 35 ~ 40 μm, and width is 30 ~ 35 μm, and thickness is 30 ~ 40 μm.The material of described substrate 11 is silicon dioxide.The material of the first described rectangular flat 2, second rectangular flat 3, trapezoidal dull and stereotyped 5, the 4th rectangular flat 6, the second isosceles trapezoid flat board 7 of the 3rd rectangular flat 4, first, the 5th rectangular flat 8 is High Resistivity Si.
Embodiment 1
The length of the substrate of crocodile mouth shape terahertz polarization beam splitter is 380 μm, and width is 180 μm, and thickness is 25 μm.First rectangular flat length is 80 μm, and width is 50 μm, and thickness is 30 μm.Second rectangular flat length is 100 μm, and width is 35 μm, and thickness is 30 μm.3rd rectangular flat length is 150 μm, and width is 130 μm, and thickness is 30 μm.First isosceles trapezoid is dull and stereotyped identical with the second isosceles trapezoid panel size, and upper base is 35 μm, goes to the bottom as 50m, and height is 80 μm, and thickness is 30 μm.4th rectangular flat and the 5th rectangular flat measure-alike, length is 35 μm, and width is 30 μm, and thickness is 30 μm.The material of substrate is silicon dioxide.First rectangular flat, the second rectangular flat, the 3rd rectangular flat, the first trapezoidal flat board, the 4th rectangular flat, the second isosceles trapezoid material that is dull and stereotyped, the 5th rectangular flat are High Resistivity Si.The energy profile of crocodile mouth shape terahertz polarization beam splitter as shown in Figures 2 and 3, the TM ripple of the first signal output part of crocodile mouth shape terahertz polarization beam splitter, TE ripple output power curve are as shown in Figure 3, in 0.5 ~ 1.5THz frequency range, TM ripple peak power output insertion loss is 0.09dB, TE ripple minimum output power extinction ratio is 40dB.As shown in Figure 4, in 0.5 ~ 1.5THz frequency range, TE ripple peak power output insertion loss is 0.07dB, TM ripple minimum output power extinction ratio is 41dB for the TE ripple of secondary signal output terminal, TM ripple output power curve.
Claims (9)
1. a crocodile mouth shape terahertz polarization beam splitter, is characterized in that comprising signal input part (1), the first signal output part (9), secondary signal output terminal (10), substrate (11); Substrate (11) upper surface is provided with the first rectangular flat (2), the second rectangular flat (3), the 3rd rectangular flat (4), the 4th rectangular flat (6), the 5th rectangular flat (8), the first isosceles trapezoid flat board (5), the second isosceles trapezoid flat board (7); First rectangular flat (2), the second rectangular flat (3), the 3rd rectangular flat (4) are connected in turn, 3rd top, rectangular flat (4) right side is connected with the first isosceles trapezoid flat board (5), 3rd rectangular flat (4) lower right-hand side is connected with the second isosceles trapezoid flat board (7), first isosceles trapezoid flat board (5) right side is connected with the 4th rectangular flat (6), and the second isosceles trapezoid flat board (7) right side is connected with the 5th rectangular flat (8); First rectangular flat (2) left side is provided with signal input part (1), 4th rectangular flat (6) right side is provided with the first signal output part (9), the 5th rectangular flat (8) right side is provided with secondary signal output terminal (10), signal is from signal input part (1) input, and the first signal output part (9) exports TM ripple, secondary signal output terminal (10) exports TE ripple.
2. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that the length of described substrate (11) is 380 ~ 390 μm, width is 180 ~ 190 μm, and thickness is 25 ~ 30 μm.
3. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that described the first rectangular flat (2) length is 80 ~ 90 μm, width is 50 ~ 55 μm, and thickness is 30 ~ 40 μm.
4. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that described the second rectangular flat (3) length is 100 ~ 110 μm, width is 35 ~ 40 μm, and thickness is 30 ~ 40 μm.
5. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that the 3rd described rectangular flat (4) length is 150 ~ 160 μm, width is 130 ~ 135 μm, and thickness is 30 ~ 40 μm.
6. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that the first described isosceles trapezoid flat board (5) and the second isosceles trapezoid flat board (7) measure-alike, upper base is 35 ~ 40 μm, going to the bottom is 50 ~ 55m, height is 80 ~ 85 μm, and thickness is 30 ~ 40 μm.
7. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that the 4th described rectangular flat (6) and the 5th rectangular flat (8) are measure-alike, length is 35 ~ 40 μm, and width is 30 ~ 35 μm, and thickness is 30 ~ 40 μm.
8. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, is characterized in that the material of described substrate (11) is silicon dioxide.
9. a kind of crocodile mouth shape terahertz polarization beam splitter according to claim 1, it is characterized in that described the first rectangular flat (2), the second rectangular flat (3), the 3rd rectangular flat (4), the first trapezoidal flat board (5), the 4th rectangular flat (6), the second isosceles trapezoid flat board (7), the 5th rectangular flat (8) material be High Resistivity Si.
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| CN201420683386.6U CN204166160U (en) | 2014-11-14 | 2014-11-14 | Crocodile mouth shape terahertz polarization beam splitter |
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| CN201420683386.6U CN204166160U (en) | 2014-11-14 | 2014-11-14 | Crocodile mouth shape terahertz polarization beam splitter |
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| CN204166160U true CN204166160U (en) | 2015-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515440A (en) * | 2017-09-27 | 2017-12-26 | 中国计量大学 | The THz wave list polarization follower of intrinsic gallium arsenide waveguiding structure |
-
2014
- 2014-11-14 CN CN201420683386.6U patent/CN204166160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107515440A (en) * | 2017-09-27 | 2017-12-26 | 中国计量大学 | The THz wave list polarization follower of intrinsic gallium arsenide waveguiding structure |
| CN107515440B (en) * | 2017-09-27 | 2020-03-27 | 中国计量大学 | Terahertz wave single polarization output device of intrinsic gallium arsenide waveguide structure |
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| 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: 20150218 Termination date: 20151114 |
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| EXPY | Termination of patent right or utility model |