infrared spectrum
type: Concept
preferred label: طیف فروسرخ @fa
related: terahertz wave spectrum

millimetre wave spectrum
type: Concept
preferred label: طیف موج میلیمتری @fa
related: terahertz wave spectrum

submillimetre wave spectrum
type: Concept
preferred label: طیف موج زیرمیلمتری @fa
related: terahertz wave spectrum

terahertz wave spectrum
type: Concept
broader: radiofrequency spectrum
preferred label: طیف موج تراهرتز @fa
related: terahertz spectroscopy
related: millimetre wave spectrum
related: submillimetre wave spectrum
related: infrared spectrum

radiofrequency spectrum
type: Concept
narrower: terahertz wave spectrum
preferred label: طیف بسامدرادیویی @fa

terahertz spectroscopy
type: Concept
preferred label: طیف‌شناسی تراهرتز @fa
related: terahertz wave spectrum