U.S. Particle Accelerator School

Accelerator-Based Sources of Coherent Terahertz Radiation course

Sponsoring University:

University of California, Santa Cruz


Accelerator-Based Sources of Coherent Terahertz Radiation


John Byrd and Fernando Sannibale, Lawrence Berkeley National Lab

Purpose and Audience
The region of the electromagnetic spectrum from 0.3 to 20 THz is a frontier area for research in physics, chemistry, biology, materials science and medicine. This course will focus on the generation and application of coherent terahertz radiation from electron beams both as a beam diagnostic and as a source for experimenters. The course is aimed at accelerator physicists, engineers and technicians as well as potential users who want to learn how to produce and use coherent terahertz either as a beam diagnostic or as a source for experiments.

Courses in College Physics and first year Calculus.

On completion of this course, the students are expected to be familiar with coherent radiation mechanisms from electron beams and how they can be applied for terahertz generation. Students will also be familiar with basics of the transport, detection, and use of terahertz radiation from accelerators.

Instructional Method
This course is based on a series of lectures, with two afternoons spent in the computer lab. Sets of problems covering certain topics will be assigned and have to be completed outside of scheduled class time. Problem sets will be graded, and feedback will be provided by the instructors in a timely fashion.

Course Content
The course will compare coherent radiation mechanisms such as bend, undulator, edge, diffraction, and transition radiation. The course will cover beam dynamics of short bunches in linacs and storage rings. An introduction to terahertz free electron lasers will also be included. The course will provide and introduction to terahertz transport and detection methods including bolometers and electro-optic sampling.

Reading Requirements

Credit Requirements
Students will be evaluated based on class participation, problem sets and a final exam.