Description The Sapienza Terahertz laboratory is devoted to R&D on spectroscopic and imaging at THz frequencies. The laboratory is equipped with a state-of-art compact Quantum Cascade Laser (QCL) source with a close-loop cooling system. Emission range is (1-5)THz with mW power level. The emission lines are particularly narrow and tunable allowing for high resolution spectroscopy. Different detection systems can be used to perform a 2D+1 image: a state-of-art room temperature 2D bolometer camera that allows “real-time” diffraction limited and w high sensitivity measurement (NEP of about 10 pW/sqrt(Hz) and a sensor composed by ~ 380x280 pixels) and standard pyroelectric sensors in a raster-scan configuration. The laboratory host also a CW coherent detection spectrometer working in the range (0.05-3)THz with resolution down to 10MHz. This system adopts state-or-art fiber-coupled distributed-feedback-laser as highly wavelength-tunable infrared coherent sources. This radiation is then traduced into THz by photo-antennas technology.

Partner institution Sapienza Università di Roma

Scientific domain SH5_8 - Cultural studies, cultural identities and memories, cultural heritage - Cultures and Cultural Production LS3_16 - Functional imaging of cells and tissues - Cellular, Developmental and Regenerative Biology PE7_6 - Communication systems, wireless technology, high-frequency technology - Systems and Communication Engineering LS7_1 - Medical imaging for prevention, diagnosis and monitoring of diseases - Prevention, Diagnosis and Treatment of Human Diseases PE10_1 - Atmospheric chemistry, atmospheric composition, air pollution - Earth System Science LS9_9 - Plant pathology and pest resistance - Biotechnology and Biosystems Engineering PE4_2 - Spectroscopic and spectrometric techniques - Physical and Analytical Chemical Sciences

Keywords THz THz source spectrometer biomedical imaging imaging THz detector atomic and molecular physics and optics Optics heritage Atmospheric chemistry atmospheric composition air pollution