Multi-Octave THz Generation and Detection at MHz Repetition Rates using the Organic Nonlinear Crystal PNPA

Generation and detection of broadband THz radiation using the PNPA ((E)-4-((4-nitrobenzylidene)amino)-N-phenyl-aniline) crystal at MHz repetition rates is demonstrated. Compatibility with nanojoule pump pulses at telecommunication wavelengths makes this medium attractive for compact THz spectrometers.