Modulator apparatus for terahertz wave of photon crystal and its method

A photonic crystal and terahertz technology, which is applied in the field of terahertz wave application, achieves the effects of small size, meeting the needs of terahertz wave communication, and fast response speed

Inactive Publication Date: 2007-05-16
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the application of BWO is either used for spectrum analysis or imaging detectio

Method used

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  • Modulator apparatus for terahertz wave of photon crystal and its method
  • Modulator apparatus for terahertz wave of photon crystal and its method
  • Modulator apparatus for terahertz wave of photon crystal and its method

Examples

Experimental program
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Embodiment 1

[0021] Terahertz wave modulation with 0.6THz frequency:

[0022] Choose BWOs sold by Microtech, among which the model of the retro-wave tube is QS-400 ov81 (the frequency is tunable in the 0.6-0.9THz frequency band). The designed silicon photonic crystal period a=133μm, the silicon photonic crystal refractive index is 3.4, the photonic crystal hole radius r=53.2μm, the width of the line defect of the silicon photonic crystal is to remove a row of holes (width is 2a), choose nano-level In the 5CB liquid crystal injection hole, the frequency of the terahertz wave used for terahertz communication is 0.6 THz. When the obtained electrode has no applied voltage, the steady-state transmission of the terahertz wave in the photonic crystal modulator structure is shown in Figure 4(a); when the electrode has an applied voltage (0.71V), the terahertz wave is in the photonic crystal modulator structure The steady-state transmission situation is shown in Figure 4(b). The extinction ratio of the...

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Abstract

This invention discloses one photon crystal Hertz wave modulation device and its method, wherein, the device comprises silicon photon crystal with deficiency, electrode, liquid crystal, silica dioxide underlay; the underlay is set with silicon photon crystal on and injects liquid crystal into silicon photon crystal holes with deficiency and sets electrode on both sides of silicon photon crystal with deficiency; The photon crystal Hertz wave modulation method is to use photon edge to modulate Hertz wave signals.

Description

Technical field [0001] The invention belongs to the technical field of terahertz wave applications, and specifically relates to a photonic crystal terahertz wave modulator device and a method thereof. Background technique [0002] Terahertz (THz, 1THz=10E+12Hz) radiation usually refers to electromagnetic radiation waves with a frequency range of 0.1THz to 10THz. This band is located at the junction of electronics and optics. It occupies a very special position in the electromagnetic spectrum. , Has a series of special properties and important academic and application value. Terahertz communication has the advantages of rich frequency band resources, large bandwidth, good confidentiality, and the transmission rate can reach 1-10Gb / s, and terahertz communication does not require the approval of the radio management department, so terahertz waves have unique advantages in the application of communications. [0003] At present, the terahertz wave sources used for terahertz wave commu...

Claims

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Application Information

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IPC IPC(8): G02F1/13G02F1/01
Inventor 李九生
Owner CHINA JILIANG UNIV
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