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Terahertz (THz) - Unit Information & Conversion

Symbol:THz
Plural:terahertz
Category:Frequency

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What is a Terahertz?

Terahertz (THz) is a frequency unit equal to 1,000,000,000,000 hertz (1 trillion cycles per second). Used for far-infrared radiation, spectroscopy, security imaging, 6G research, and materials science.

History of the Terahertz

Prefix "tera" from Greek teras (monster) combined with hertz. The terahertz gap (0.1-10 THz) between microwave and infrared was historically difficult to generate and detect, but modern technology has made THz applications practical.

Quick Answer

What is a Terahertz? A terahertz (THz) equals 1,000,000,000,000 hertz (1 trillion cycles/second) or 1,000 gigahertz. THz radiation sits between microwaves and infrared light (0.1-10 THz). Used for security screening, medical imaging, 6G wireless research, spectroscopy, and materials analysis. 1 THz = 1,000 GHz = 1 trillion Hz. Use our frequency converter for instant conversions.

Definition

1 THz = 1,000,000,000,000 Hz = 1,000 GHz = 1,000,000 MHz

Wavelength: 1 THz ≈ 300 micrometers (0.3 mm)

Common Uses

Security Imaging: Airport body scanners, contraband detection (THz waves penetrate clothing but not metal/water). Medical Imaging: Non-ionizing tissue imaging, cancer detection, dental imaging. Spectroscopy: Material identification, chemical analysis, pharmaceutical quality control. 6G Research: Future wireless communications (sub-THz bands 100-300 GHz). Astronomy: Studying cold molecular clouds, star formation regions.

Real-World Applications

Security & Defense

  • Airport security scanners: 0.2-2 THz
  • Concealed weapon detection
  • Explosive detection systems
  • Non-destructive package inspection

Medical & Biology

  • Skin cancer detection
  • Dental cavity detection
  • Burn wound assessment
  • Protein structure analysis
  • DNA sequencing

Communications (Future)

  • 6G wireless: 100-300 GHz (0.1-0.3 THz)
  • Ultra-high bandwidth: 100+ Gbps
  • Short-range communications

Materials Science

  • Coating thickness measurement
  • Semiconductor characterization
  • Polymer analysis
  • Art conservation (paint layer analysis)

Astronomy

  • Far-infrared telescopes
  • Molecular cloud studies
  • Star formation observation
  • Cosmic background radiation

Terahertz Conversion Formulas

To Hertz:

1 THz = 1000000000000 Hz
Example: 5 terahertz = 5000000000000 hertz

To Millihertz:

1 THz = 1000000000000000 mHz
Example: 5 terahertz = 5000000000000000 millihertz

To Kilohertz:

1 THz = 1000000000 kHz
Example: 5 terahertz = 5000000000 kilohertz

To Megahertz:

1 THz = 1000000 MHz
Example: 5 terahertz = 5000000 megahertz

To Gigahertz:

1 THz = 1000 GHz
Example: 5 terahertz = 5000 gigahertz

To Revolutions per Minute:

1 THz = 60000000000000 rpm
Example: 5 terahertz = 300000000000000 rpm

To Revolutions per Second:

1 THz = 1000000000000 rps
Example: 5 terahertz = 5000000000000 rps

To Beats per Minute:

1 THz = 60000000000000 bpm
Example: 5 terahertz = 300000000000000 bpm

To Cycles per Second:

1 THz = 1000000000000 cps
Example: 5 terahertz = 5000000000000 cps

To Radians per Second:

1 THz = 6283185307179.586 rad/s
Example: 5 terahertz = 31415926535897.93 rad/s

Frequently Asked Questions

Formula: GHz = THz × 1,000 Examples:

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Terahertz Quick Info

THz
Symbol:THz
Category:Frequency
System:Various
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