Terahertz antenna size of 255 x 341 nanometers
A couple of months ago, Habré was told about a terahertz modem produced by the Japanese company Rohm. The device measuring 1.5 x 3 cm is capable of transmitting data at a speed of 1.5 Gbps, while the developers promise to overclock the modem to 30 Gbps in the future. Transmission is in the terahertz spectrum, that is, in the range from 100 GHz to 10 THz. It is assumed that such modems can be useful for transmitting ultra-high-resolution video in televisions, projectors and computer modems.
Now researchers from the Singaporean company A * STAR and Imperial College London have developed an antenna that also works in the terahertz spectrum, but at the same time has a size of only 255 x 341 nanometers. To generate radiation, an electro-optical effect is used in a semiconductor chip.
Apparently, this antenna is not yet intended to be used simply as a generator of terahertz radiation (T-rays) for scanners. The developers say that it generates radiation "about a hundred times more powerful" than current systems, under normal conditions at room temperature.
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As you know, waves in the terahertz spectrum have specific properties: they pass through clothes, wood, plastic, ceramics, are reflected from metal and water, therefore terahertz tomographs are installed in airport security systems for scanning luggage and people. Thus, the new antenna can find wide application in already existing devices.
The use of such antennas for data transmission is the prospect of a more distant future. Miniature dimensions will allow placing it directly on a microchip or embedding it in implants, for example, in contact lenses with a display for receiving high-resolution video. Although, as habraiser seewald correctly noted in the comments, in this case you will have to look directly at the transmitter and not blink.
Greatly enhanced terahertz continuous wavelength nano-electrodes in a photoconductive photomixer , Nature Photonics, published January 15, 2012
Now researchers from the Singaporean company A * STAR and Imperial College London have developed an antenna that also works in the terahertz spectrum, but at the same time has a size of only 255 x 341 nanometers. To generate radiation, an electro-optical effect is used in a semiconductor chip.
Apparently, this antenna is not yet intended to be used simply as a generator of terahertz radiation (T-rays) for scanners. The developers say that it generates radiation "about a hundred times more powerful" than current systems, under normal conditions at room temperature.
')
As you know, waves in the terahertz spectrum have specific properties: they pass through clothes, wood, plastic, ceramics, are reflected from metal and water, therefore terahertz tomographs are installed in airport security systems for scanning luggage and people. Thus, the new antenna can find wide application in already existing devices.
The use of such antennas for data transmission is the prospect of a more distant future. Miniature dimensions will allow placing it directly on a microchip or embedding it in implants, for example, in contact lenses with a display for receiving high-resolution video. Although, as habraiser seewald correctly noted in the comments, in this case you will have to look directly at the transmitter and not blink.
Greatly enhanced terahertz continuous wavelength nano-electrodes in a photoconductive photomixer , Nature Photonics, published January 15, 2012
Source: https://habr.com/ru/post/137218/
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