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Generating ultrabroadband terahertz radiation based on the under-compression mode of velocity bunching
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10.1063/1.4790430
/content/aip/journal/rsi/84/2/10.1063/1.4790430
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/2/10.1063/1.4790430

Figures

Image of FIG. 1.
FIG. 1.

CTR beamline of the Tsinghua linac.

Image of FIG. 2.
FIG. 2.

Transition radiation spectroscopy of a single electron.

Image of FIG. 3.
FIG. 3.

Principle of (a) RF compression and (b) RF-drift compression. Figures are mainly referenced to Refs. 15,16 .

Image of FIG. 4.
FIG. 4.

Differences between RF compression and RF-drift compression. (a) The distribution of the shortest bunch at the TW accelerator exist in the RF compression scheme (black), and the distribution of the bunch after a long drift segment in the RF-drift compression (red). The rms lengths of the entire bunches are 161 fs and 174 fs, respectively, whereas the rms for the spike of the red bunch, lying between 1350 and 1550 fs and containing 77% of the charges is just 31.81 fs. (b): Form factors F(f) of the bunches in (a).

Image of FIG. 5.
FIG. 5.

Stability of RF-drift compression. The THz spectrum width of 0.4 nC beam vs the TW accelerator phase at different TW accelerator gradients.

Image of FIG. 6.
FIG. 6.

Optimized THz spectrum of different charged bunches in RF - drift compression operation.

Tables

Generic image for table
Table I.

Recent developments in broadband THz sources based on linacs.

Generic image for table
Table II.

Parameters (0.2 ∼ 1 nC beams).

Generic image for table
Table III.

THz energy of different charged bunch.

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/content/aip/journal/rsi/84/2/10.1063/1.4790430
2013-02-22
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Generating ultrabroadband terahertz radiation based on the under-compression mode of velocity bunching
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/2/10.1063/1.4790430
10.1063/1.4790430
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