Prism Compressor
978-613-3-56423-7
6133564237
160
2010-11-16
49.00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A prism compressor is an optical device used to shorten the duration of a positively chirped ultrashort laser pulse by giving different wavelength components a different time delay. It typically consists of two prisms and a mirror. Figure 1 shows the construction of such a compressor. Although the dispersion of the prism material causes different wavelength components to travel along different paths, the compressor is built such that all wavelength components leave the compressor at different times, but in the same direction. If the different wavelength components of a laser pulse were already separated in time, the prism compressor can make them overlap with each other, thus causing a shorter pulse. Prism compressors are typically used to compensate for dispersion inside Ti:sapphire modelocked laser.
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Físicas, astronomia
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