Advancing Your Terahertz Vision

With a 50-year heritage of research and development, our passive optical components deliver unmatched performance and precision to support and stimulate the broad advance of terahertz technology.

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CTT is the global leader in terahertz (THz) frequency selective optical components. We offer an extensive catalogue of devices and a custom design service.

Industries Served

Aerospace & Astronomy

6G &
Telecom

Security & Defence

Scientific Research

Medical
Imaging

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Aerospace & Astronomy

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6G &
Telecom

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Security & Defence

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Scientific Research

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Medical
Imaging

Why CTT?

  • Unmatched performance and precision.
  • Ambient and cryogenic applications.
  • Trusted by global leaders in science & industry.
  • Bespoke consultancy service.

Recent News

Physicist honoured for outstanding work on revolutionary astronomical instruments and facilities

Physicist honoured for outstanding work on revolutionary astronomical instruments and facilities

A Cardiff University physicist has been awarded the 2024 Institute of Physics (IOP) James Joule Medal and Prize.

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Celebrating 50 Years of Scientific Exchange: IRMMW-THz 2025 Heads to Finland

Celebrating 50 Years of Scientific Exchange: IRMMW-THz 2025 Heads to Finland

Now entering its 50th year, the 2025 edition will take place from 17–22 August in Espoo, Finland, hosted by Aalto University.

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Bringing the Cosmos into Focus: New Astronomical Instrumentation Text by CTT Leaders Published

Bringing the Cosmos into Focus: New Astronomical Instrumentation Text by CTT Leaders Published

Two of CTT’s founders are co-authors of a definitive guide to astronomical instrumentation and techniques.

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The team at CTT is here to help. Get in touch today to find out how our unique terahertz optical components technology can transform your project.