TTerahertz Physics, Devices, and Systems IIITerahertz Physics, Devices, and Systems IIIde Mehdi Anwar, Nibir K. Dhar, Thomas W. Crowe, SPIEMateriasMicrowavesOptoelectronic devicesSpectrum analysisHigh technologyTerahertz spectroscopyCongressesTerahertz technologySubmillimeter waves