A light-like gravitational wave detector

Abstract

The present invention relates to a light-like gravitational wave detector, which belongs to the technical field of weak signal detection. The light-like gravitational wave detector comprises: an emitting electrode, a graphene substrate, a light-like beam splitter, a collecting electrode, an insulating layer and a substrate electrode. The emitting electrode and the collecting electrode are electrically connected to the graphene substrate respectively. The carriers emitted by the emitting electrode are split by the light-like beam splitter after passing through an electronic light-like momentum selector, and are respectively transmitted to the collecting electrode through three mutually perpendicular detection arms. The gates of the electronic light-like momentum selector and the light-like beam splitter are both arranged vertically above the graphene substrate. Beneficial effects: The wavelength of graphene-like light transport is shorter, and it is more sensitive to gravitational waves, which improves the sensitivity of the gravitational wave detector and can reduce the size of the gravitational wave detector; and the coordinate orientation information of the gravitational wave source can be obtained by using three mutually perpendicular detection arms.

Description

Technical Field

[0001] The present invention belongs to the technical field of weak signal detection, and in particular relates to a light-like gravitational wave detector. Background Art

[0002] Detection of weak signals such as gravitational waves has always been a technical challenge. The displacement caused by gravitational waves is very small, and current gravitational wave detectors are mainly based on Michelson laser interferometers. In order to improve the sensitivity of detection, extremely long detection arms are required. For example, the arm length of the Virgo detector in Italy is 3km, while the arm length of the LIGO in Washington State and Louisiana, USA, is 4km. This makes the detector extremely large, the equipment cost high, and the maintenance difficult. The detection arm can only be placed on the ground, so there are only two horizontally perpendicular detection arms, and an upright detection arm cannot be set up. Therefore, a single detector cannot determine the coordinate and azimuth information of the gravitational wave source.

[0003] Michelson interferometer can measure tiny displacements, and its detection accuracy is inversely proportional to the wavelength of light. However, it is difficult to produce lasers with ultraviolet, deep ultraviolet or X-ray wavelengths, so it is difficult to improve accuracy by further reducing the wavelength of light. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a light-like gravitational wave detector. The wavelength of electrons or holes in graphene or carbon nanotube-like light transport is shorter and more sensitive to gravitational waves, thereby improving the sensitivity of the gravitational wave detector and reducing the size of the gravitational wave detector. In addition, the coordinate position information of the gravitational wave source can be obtained by using three mutually perpendicular detection arms.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: a quasi-light gravitational wave detector comprises: an emitting electrode, a graphene substrate, a quasi-light beam splitter, a collecting electrode, an insulating layer and a substrate electrode, the emitting electrode and the collecting electrode are electrically connected to the graphene substrate respectively, the carriers emitted by the emitting electrode pass through an electronic quasi-light momentum selector and are then split by the quasi-light beam splitter, and respectively pass through three mutually perpendicular detection arms to the collecting electrode, the gates of the electronic quasi-light momentum selector and the quasi-light beam splitter are both arranged vertically above the graphene substrate, and the insulating layer is provided between the electronic quasi-light momentum selector and the quasi-light beam splitter and the graphene substrate, and between the graphene substrate and the substrate electrode.

[0006] Beneficial effects: The wavelength of electrons or holes in light-like transport is shorter and more sensitive to gravitational waves, which improves the sensitivity of gravitational wave detectors and can reduce the size of gravitational wave detectors; and the coordinate position information of the gravitational wave source can be obtained by using three mutually perpendicular detection arms.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the detection arm is graphene or carbon nanotube.

[0009] The beneficial effect of adopting the above further scheme is that since the wavelength of carriers in graphene or carbon nanotube-type optical transport is much smaller than the wavelength of light, the sensitivity to tiny signals such as gravitational waves is higher.

[0010] Furthermore, when the detection arm is graphene, a quasi-light total reflection mirror is provided on the detection arm, and the quasi-light total reflection mirror is a graphene barrier controlled by a 90-degree V-shaped gate.

[0011] The beneficial effects of adopting the above further scheme are: the vertical incidence transmittance of the light-like particles is 1, and the light-like total reflection mirror formed by a 90-degree V-shaped gate control potential barrier can effectively reflect the light-like particles to the collecting electrode; the gate adjustment can more quickly obtain high reflectivity according to the voltage adjustment between the graphene substrate and the substrate electrode.

[0012] Furthermore, the carbon nanotubes are Zigzag single-walled carbon nanotubes.

[0013] The beneficial effect of adopting the above further solution is that it is easier to form light-like transport in the Zigzag single-walled carbon nanotubes and it is easier to combine with graphene.

[0014] Furthermore, the light-splitting mirror is three graphene rectangular barriers controlled by three 45-degree inclined gates.

[0015] The beneficial effect of adopting the above further solution is that the rectangular barrier controlled by the 45-degree gate can effectively separate the light-like particles without causing additional optical path difference. Similarly, the gate can be used to more quickly adjust the voltage between the graphene substrate and the substrate electrode to obtain the appropriate reflectivity and transmittance.

[0016] Furthermore, the insulating layer is made of silicon dioxide.

[0017] The beneficial effect of adopting the above further solution is that the gate is separated from the graphene substrate, and the graphene substrate is separated from the substrate electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the present invention;

[0019] Figure 2 is a cross-sectional view of the present invention;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Emitting electrode; 2. Graphene substrate; 3. Electronic photomomentum selector; 4. Beam splitter; 5. Detection arm; 6. Collecting electrode; 7. Insulating layer; 8. Substrate electrode. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0023] Example

[0024] like Figure 1-2 As shown, this embodiment provides a light-like gravitational wave detector, including an emitting electrode 1, a graphene substrate 2, a light-like beam splitter 4, a collecting electrode 6, an insulating layer 7 and a substrate electrode 8. Light-like transport refers to a special transport behavior in which the transport behavior of electrons or holes in graphene and carbon nanotubes is similar to the transport behavior of light. The emitting electrode 1 and the collecting electrode 6 are electrically connected to the graphene substrate 2 respectively. The carriers emitted by the emitting electrode 1 are split by the light-like beam splitter 4 after passing through the electron-like light momentum selector 3, and are respectively transmitted to the collecting electrode 6 through three mutually perpendicular detection arms 5 for signal detection. The gates of the electron-like light momentum selector 3 and the light-like beam splitter 4 are both arranged vertically above the graphene substrate 2. The insulating layer 7 is provided between the electron-like light momentum selector 3 and the light-like beam splitter 4 and the graphene substrate 2, and between the graphene substrate 2 and the substrate electrode 8. The insulating layer 7 is made of silicon dioxide.

[0025] The electronic photon momentum selector 3 is composed of two grids tilted at minus 45 degrees, with a width of 20 nanometers, a spacing of 30 nanometers, and a length of 200 nanometers. The electronic photon momentum selector 3 can play a filtering role. Only electrons with a specific momentum can pass through the electronic photon momentum selector 3, limiting the speed and direction of the emitted electrons; the light-like beam splitter 4 is composed of three grids tilted at 45 degrees, each grid is 20 nanometers wide and 200 nanometers long. Electrons passing through each grid can have half reflection and half transmission, so that the light-like beam splitter 4 can adjust the voltage to evenly distribute the incident electrons to the detection arm; the grid and graphene are separated by a silicon dioxide insulating layer 7 with a thickness of 20 nanometers. The graphene substrate 2 and the substrate electrode 10 are also separated by a silicon dioxide insulating layer 7 with a thickness of 50 nanometers.

[0026] Preferably, when the detection arm 5 is graphene, a quasi-light total reflection mirror is provided on the detection arm 5, and the quasi-light total reflection mirror is a 90-degree V-shaped gate control barrier.

[0027] Preferably, when the detection arm 5 is a carbon nanotube, the carbon nanotube is a Zigzag single-walled carbon nanotube with a diameter of 2 nanometers and a total length of 10 meters. It is folded 100 times without contact, so that the length of the three mutually perpendicular detection arms 5 is 0.1 meters, and its sensitivity is equivalent to the sensitivity of a traditional laser Michelson interferometer with an arm length of 3 kilometers.

[0028] In the description of the present invention, “plurality” means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A light-like gravitational wave detector, characterized in that: The invention comprises an emitting electrode (1), a graphene substrate (2), a quasi-beam splitter (4), a collecting electrode (6), an insulating layer (7) and a substrate electrode (8); the emitting electrode (1) and the collecting electrode (6) are respectively electrically connected to the graphene substrate (2); the carriers emitted by the emitting electrode (1) pass through an electronic-type light momentum selector (3) and are then split by the quasi-beam splitter (4) and respectively pass through three mutually perpendicular detection arms (5) to the collecting electrode (6); the grids of the electronic-type light momentum selector (3) and the quasi-beam splitter (4) are both arranged vertically above the graphene substrate (2); the insulating layer (7) is provided between the electronic-type light momentum selector (3) and the quasi-beam splitter (4) and the graphene substrate (2), and between the graphene substrate (2) and the substrate electrode (8); The detection arm (5) is graphene or carbon nanotube.

2. The light-like gravitational wave detector according to claim 1, characterized in that: When the detection arm (5) is graphene, a light-like total reflection mirror is provided on the detection arm (5), and the light-like total reflection mirror is a graphene barrier controlled by a 90-degree V-shaped gate.

3. The light-like gravitational wave detector according to claim 1, characterized in that: The carbon nanotubes are Zigzag single-wall carbon nanotubes.

4. The light-like gravitational wave detector according to any one of claims 1 to 3, characterized in that: The light-splitting mirror (4) is composed of three graphene rectangular barriers controlled by three grids at 45 degrees.

5. The light-like gravitational wave detector according to any one of claims 1 to 3, characterized in that: The insulating layer (7) is made of silicon dioxide.

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