and improved mechanical stability. See also Attosecond chronoscopy Bandwidth-limited pulse Femtochemistry Frequency comb Medical imaging: Ultrashort laser pulses are used in multiphoton fluorescence microscopes Optical communication (Ultrashort pulses) Filtering and Pulse Shaping. Terahertz (T-rays) generation and detection. Ultrafast laser spectroscopy Wave packet References Further reading External links The virtual femtosecond laboratory Lab2 Animation on Short Pulse propagation in random medium (YouTube) Ultrafast Lasers: An animated guide to the functioning of Ti:Sapphire lasers and amplifiers. Nonlinear optics Laser science