Optical aspects for lasing in the visible and UV with FELICITA I
- Univ. of Dortmund (Germany); and others
In this contribution some topics of the optical cavity of the SRFEL are discussed. As rather high peak currents of the DELTA storage ring are expected, the radius of the mirrors is not optimized for maximum gain but is determined by a compromise between stability of the optical cavity and gain. For short wavelength operation of FELs the microroughness as well as the planity of the mirror substrates are more important. Substrates with different specifications for their microroughness are compared. FELICITA I should be able to lase down 200nm. Therefore the ion beam sputter technique for the dielectric coatings should be used at wavelength below 300 nm with new materials for the multilayers.
- Research Organization:
- Brookhaven National Lab., Upton, NY (United States)
- OSTI ID:
- 238714
- Report Number(s):
- BNL--61982-Absts.; CONF-9508156--Absts.; ON: DE96002729
- Country of Publication:
- United States
- Language:
- English
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