Accession Number : ADA263734


Title :   High Resolution Free-Electron Laser Spectroscopy


Descriptive Note : Final technical rept. 1 Jun 1988-30 Sep 1991


Corporate Author : DUKE UNIV DURHAM NC


Personal Author(s) : Madey, John M ; Szarmes, Eric B


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a263734.pdf


Report Date : 23 Mar 1993


Pagination or Media Count : 156


Abstract : High peak power infrared pulses as short as 350 femtoseconds have been generated using the MK III FEL. Small signal analyses have been developed for operating the FEL with electron pulses whose energy varies linearly with time. Chirped-pulse simulations using modest energy shirps have demonstrated a xl5 compression ratio at saturated power levels for 3.4 ps optical pulses at 3. 35 micrometers, and coupled pulse simulations have indicated substantial longitudinal mode reduction on microsecond time scales. A Michelson mirror resonator has been operated for the first time on the MK III FEL, along with phase-locked operation using a beamsplitter reflectance of only 1.4%.... Free electron laser, Femtosecond pulses, Spectroscopy, Chirped pulses.


Descriptors :   *FREE ELECTRON LASERS , *HIGH RESOLUTION , *SPECTROSCOPY , COMPRESSION , COMPRESSION RATIO , ENERGY , INFRARED PULSES , LASERS , MICROMETERS , MICROSECOND TIME , MIRRORS , OPERATION , OPTICS , PEAK POWER , PHASE , PHASE LOCKED SYSTEMS , POWER , POWER LEVELS , PULSES , RATIOS , REDUCTION , REFLECTANCE , RESONATORS , SIGNALS , SIMULATION , THESES , TIME


Subject Categories : Lasers and Masers
      Atomic and Molecular Physics and Spectroscopy
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE