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The UCSB Free-Electron Lasers

The UCSB Free Electron laser source offers high power terahertz radiation. The primary radiation source consists of two fully operational FELs, the MM-FEL and the FIR-FEL, covering the range of 2.5 mm to 63 µm (4 to 160 cm-1 or 120 GHz to 4.75 THz). These are connected to a users' laboratory by a vacuum optical transport system. Twelve switchable output ports allow multiple experimental setups. This facility is unique in providing tunable, coherent, kilowatt-level radiation for scientific research in the far-infrared portion of the spectrum. A 6 MV, recirculating-beam, electrostatic accelerator generates a high quality 2 A beam for these FELs which are located in a three position beam switchyard.

Technical Primary Contact:
Nikolay Agladze

Access Procedure: 
Campus users contact facility for training.
Non-UC use of the below labs is governed by these procedures:
  1. Contact the Lab Manager to ensure the equipment/lab is available for your schedule.
  2. Contact Calli Price, Procurement Services Manager, at (link sends e-mail)  and copy Rita Makogon, ITST Manager, at to complete the required Agreement, individual waivers, insurance, and lab safety training requirements.
  3. Once all documents are approved and training is complete, users will be connected with the appropriate Lab Manager for department/equipment-specific training and Lab access.