Details

Autor(en) / Beteiligte

• England, R. Joel
• Noble, Robert J.
• Bane, Karl
• Dowell, David H.
• Ng, Cho-Kuen
• Spencer, James E.
• Tantawi, Sami
• Wu, Ziran
• Byer, Robert L.
• Peralta, Edgar
• Soong, Ken
• Chang, Chia-Ming
• Montazeri, Behnam
• Wolf, Stephen J.
• Cowan, Benjamin
• Dawson, Jay
• Gai, Wei
• Hommelhoff, Peter
• Huang, Yen-Chieh
• Jing, Chunguang
• McGuinness, Christopher
• Palmer, Robert B.
• Naranjo, Brian
• Rosenzweig, James
• Travish, Gil
• Mizrahi, Amit
• Schachter, Levi
• Sears, Christopher
• Werner, Gregory R.
• Yoder, Rodney B.

Titel

Dielectric laser accelerators

Ist Teil von

• Reviews of modern physics, 2014-12, Vol.86 (4), p.1337-1389

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2014

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• The use of lasers to accelerate particles in dielectric structures has become much more prominent of late, with recent exciting results of electron acceleration in very short distances. The physics behind this involves the interaction of electrons with a laser field inside of complex photonic structures. This article reviews the physics of such accelerators. It discusses the multiple configurations that have been proposed, their fabrication methods, and experimental results to date. It also lists many of the possible applications for such compact accelerators. The use of infrared lasers to power optical-scale lithographically fabricated particle accelerators is a developing area of research that has garnered increasing interest in recent years. The physics and technology of this approach is reviewed, which is referred to as dielectric laser acceleration (DLA). In the DLA scheme operating at typical laser pulse lengths of 0.1 to 1 ps, the laser damage fluences for robust dielectric materials correspond to peak surface electric fields in the GV /m regime. The corresponding accelerating field enhancement represents a potential reduction in active length of the accelerator between 1 and 2 orders of magnitude. Power sources for DLA-based accelerators (lasers) are less costly than microwave sources (klystrons) for equivalent average power levels due to wider availability and private sector investment. Because of the high laser-to-particle coupling efficiency, required pulse energies are consistent with tabletop microjoule class lasers. Combined with the very high (MHz) repetition rates these lasers can provide, the DLA approach appears promising for a variety of applications, including future high-energy physics colliders, compact light sources, and portable medical scanners and radiative therapy machines.