Convert terahertz [THz] to microhertz [µHz] Online | Free frequency-wavelength Converter

Bridging the Gap Between Microwaves and Infrared

The terahertz (THz) is a unit of frequency equal to 1 trillion hertz (10¹² Hz), or one trillion cycles per second. This frequency range lies between the microwave and infrared regions of the electromagnetic spectrum, often called the "terahertz gap" because it is challenging to generate and detect these waves efficiently.

Terahertz waves have unique properties that make them valuable for a variety of scientific, medical, and security applications. In medical imaging, terahertz radiation can penetrate clothing and other non-metallic materials without the harmful effects associated with X-rays, making it promising for non-invasive diagnostics. In security, terahertz scanners are used to detect concealed weapons and substances at airports.

In physics and material science, terahertz spectroscopy helps analyze molecular structures, chemical compositions, and semiconductor properties with high precision. The high frequency of terahertz waves also makes them useful in ultra-fast wireless communication technologies aiming to provide data transfer rates far beyond current Wi-Fi and 5G speeds.

Despite its potential, terahertz technology is still developing, with ongoing research focused on improving sources and detectors to unlock more practical and widespread applications.

Exploring Ultra-Slow Periodic Phenomena

The microhertz (µHz) is a unit of frequency equal to 10⁻⁶ hertz, meaning one cycle occurs every 1,000,000 seconds or approximately 11.6 days. This very low frequency range is significant in astrophysics, geophysics, and various scientific disciplines that study slow, periodic phenomena spanning days to weeks.

In astrophysics, microhertz frequencies are important for observing oscillations in stars, including our Sun. Solar oscillations, known as helioseismic waves, occur in the microhertz range and provide valuable insights into the Sun’s internal structure and dynamics. These oscillations help scientists understand stellar processes, energy transport, and magnetic activity.

On Earth, microhertz frequencies correspond to slow geophysical processes such as tectonic plate motions, long-period seismic waves, and atmospheric tides. These phenomena unfold over days and influence climate and geological activity.

Because microhertz frequencies represent slow oscillations with very long wavelengths (thousands to millions of kilometres), they provide a unique window into dynamic processes that evolve over extended timeframes. Studying microhertz waves allows researchers to connect daily to weekly timescales with broader natural cycles.