Magtera, Inc., PO Box 4308, Walnut Creek, CA 94596, USA
Magtera’s Terahertz Laser

Magtera’s Terahertz Laser Emitter is the first high-power, chip-scale, tunable laser operable at room temperature.  The Terahertz (THz) Gap of frequencies from about 100 GHz up to 10 THz (wavelength 3mm down to 30 microns) is now closing.
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A Powerful Tool For Myriad Applications

Terahertz Spectroscopy

New spectroscopic methods and insights in chemistry will be powered by adding terahertz frequencies to the visible and infrared that are useful for chemical analysis and identification.

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Terahertz Imaging

Not surprisingly, the terahertz band, which is flanked by the infrared-to-visible and the microwave bands, has some properties intermediate between its two neighbors.

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Terahertz Communication

Tunable THz devices will drive energy across massive GHz channels, enabling 1,000 X increases in bandwidth compared to current radio.

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Neurodegenerative Diseases

Terahertz energy shows great promise as a tool to identify and monitor disease biomarkers.

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Unique Properties and
Advantages of THz Waves

  • Combines the advantages of radio & visible light

    T-rays provide the transmissivity and propagation of radio with the directivity of light. THz waves can be transmitted through various opaque materials, such as paper, plastics, ceramics, wood, and textiles, enabling communication through these THz-transparent materials as well as non-destructive analysis of internal substances hidden within THz-transparent boxes, or behind clothes or curtains. Because THz wavelengths are in the micron range, THz waves can also produce images with resolution similar to that of images viewed with the human eye under visible light, even when transmitted at a distance, and even when transmitted and received through THz-transparent materials.

  • Safer (lower photon energies) than X-rays

    In contrast to X-rays (and shorter wavelength) radiation, T-rays have low photon energies, so will not cause harmful photo-ionization in biological tissues. (a photon at 1 THz carries 4 meV, which is 1 million times lower than the energy of an X-ray photon; the energy of a photon is given by hc/λ, where h is Planck's constant, c is the speed of light, and λ is the photon wavelength in a vacuum.)

  • Reveals hidden chemical and biological substances

    All materials consist of atoms and molecules joined by chemical bonds. When exposed to electromagnetic radiation of certain (THz and higher) frequencies, these chemical bonds vibrate at a unique characteristic frequency, enabling the chemical composition of the substance, impurities, and other properties to be identified. By comparison with a known spectrum signature, differences between products and compounds can be analyzed, and since THz waves are non-ionizing, this can be done non-destructively.

The slow evolution of THz sources; frequencies too high for electronics, too low for lasers.

Frequency multipliers (dark circles) dominate other electronic devices (triangles) above 150 GHz up to 1 THz. Cryogenic sources are shown as hollow circles. In the far infrared region, lasers dominate but do not emit below 1.2 THz. They also tend to be bulky (gas laser) or unstable (QCL) and expensive.

Free electron lasers are currently the best available source, but these facilities cost hundreds of millions of dollars to build, and a substantial fraction of that each year to maintain.

The slow evolution of THz sources; frequencies too high for electronics, too low for lasers.

The below table provides a comparative summary of the various commercially available terahertz sources with the Magtera magnon laser. A color code is used to compare the relative attributes of poor (red), average (yellow) and excellent (green).

The Magnon Laser combines all the desired capabilities of femtosecond lasers and diode lasers, in a low-cost and compact form factor. Furthermore, the Magnon Laser provides a fundamentally different approach to generate terahertz radiation, the performance of which far outpaces any small future incremental gains expected from existing laser technologies.

The slow evolution of THz sources; frequencies too high for electronics, too low for lasers.

The THz gap exists because it’s hard to push optical tricks to such long wavelengths and hard to push microwave-electronic tricks to such short wavelengths.

A slow increase in the usefulness and power of THz sources has delayed the development of useful and powerful THz applications. Until Magtera’s breakthrough, terahertz frequencies have been too high for even the most sophisticated electronics production techniques and yet too low for optical or infrared lasers.

Advantages Enabled by
Magtera’s THz Magnon Laser

Miniaturization

The size of tomorrow’s THz systems will shrink by a factor of five or more, thanks to room temperature operation (cryogenic cooling systems no longer needed), tunability (single tunable source displaces multiple discrete sources), and small form factor. Price performance and qualitative usefulness will dramatically increase.

Tunability enables THz spectroscopy

With greater power efficiency, room temperature operation and tunability, the Terahertz Magnon Laser Emitter will drive creation of new scientific instrumentation for measuring THz signatures of materials in the form of characteristic absorption spectra. This will open applications and markets in a huge array of process industries.

Tunability enables THz medical imaging

Tissue absorption of THz is highly differentiated depending on water content and other variables. Tissue-specific absorption spectra can provide the basis for new forms of medical imaging and physiological monitoring. And perhaps the ability to treat disease by interfering with harmful macromolecular assemblies and protein aggregates.

Voltage tunability enables signal modulation and communication

With single channels on the
order of GHz, THz radio will
enable direct link
communications at
photonics-like speeds, without a fiber medium or line of sight restrictions.

The Magtera Team

The Magtera team is comprised of scientific and business leaders in the fields of photonics, semiconductors, and spectroscopy and we have extensive experience in technology R&D and the management of commercial and government-funded R&D projects.

Boris Tankhilevich, PhD, JD (CEO).
Co-founder, lead inventor, patent attorney
Theoretical physicist, Ph.D. USSR 1979

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Adam H. Tachner, JD, BS, MBA (Exec. Chairman)
Co-founder, seasoned technology executive and company builder (Atheros, InvenSense, and Google Fiber)
20+ years leading legal and corporate development teams in high growth technology firms

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Professor Yehiel Korenblit, PhD
Co-inventor
Emeritus Professor of Theoretic Physics, Tel Aviv University

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