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Virus-Thin Filters Unlock Terahertz Future
24 May
Summary
- Ultrathin terahertz filters are revolutionizing satellite and future 6G technologies.
- Filters, thinner than viruses, enable lighter and more effective satellite components.
- Terahertz radiation promises faster, more secure data transmission for communications.
A breakthrough in terahertz radiation technology has emerged from Empa spin-off Lepto GmbH with the development of ultrathin filters. These filters, measuring just one micrometer thick, are less than the width of a virus. This innovation is particularly significant for the satellite industry, where every gram launched into orbit incurs substantial costs. Terahertz rays offer enhanced material spectroscopy for astrophysics and highly secure communication channels.
The higher frequency of terahertz radiation compared to current technologies allows for faster data transmission. Its shorter range also makes interception more difficult, making it ideal for satellite-to-satellite and satellite-to-ground communications. While atmospheric scattering limits its terrestrial range, terahertz waves are considered a cornerstone for the upcoming 6G standard, promising increased speed and efficiency.
Beyond communications, terahertz radiation holds promise for medical applications. Its ability to penetrate superficial tissue layers without the dangers of X-rays is being explored for diagnosing skin cancer, examining blood vessels, and assessing wounds. Airport body scanners are another developing application. Currently, demand for Lepto's filters comes primarily from research sectors, with the company actively seeking funding to bring its products to the broader market.
