The shortening of the FEL pulse length is an important subject, and especially reducing the FEL pulse length down to a few-cycle duration is a great challenge. However, there exists a theoretical limit that disturbs the realization of few-cycle FELs, which is known as the slippage effect. Recently, the author proposed a novel idea to overcome this difficulty and experimentally demonstrated...
Siam Photon Source II (SPS-II) is a 4th-generation synchrotron light source set to be constructed in Thailand, aimed at becoming a major synchrotron facility for Southeast Asia. It is designed with a 3 GeV low-emittance electron storage ring, featuring a DTBA lattice and a circumference of 327.6 meters. Recently, the design and machine parameters have been carefully revised, with a particular...
