A Tunable Resolution Grating Monochromator and the Quest for Transform Limited Pulses

Journal Article · 23 May 2022 · Photonics

DOI: https://doi.org/10.3390/photonics9060367 · OSTI ID:1905584

Nicolas, Josep ^[1]; Cocco, Daniele  ^[2]

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1. ALBA Synchrotron Light Source, Cerdanyola del Valles (Spain); SLAC National Accelerator Lab., Menlo Park, CA (United States)
2. SLAC National Accelerator Lab., Menlo Park, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)

A variable resolution, transform limited monochromator is designed for the Free Electron Laser (FEL) source of LCLS. It provides monochromatic beam in the 250–1500 eV range, delivering the beam on the second floor of the LCLS experimental Hall. One major requirement for this monochromator is to provide, as close as possible, monochromatic transform limited pulses for time-resolved experiments. The theory and the limit of using classical diffraction scheme to monochromatize Soft X-ray beam, while preserving the pulse length, will be presented, together with the optical scheme of this versatile monochromator design.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: European Regional Development Fund (ERDF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
• Grant/Contract Number: AC02-05CH11231; AC02-76SF00515
• OSTI ID: 1905584
• Journal Information: Photonics, Journal Name: Photonics Journal Issue: 6 Vol. 9; ISSN 2304-6732
• Publisher: MDPICopyright Statement
• Country of Publication: United States
• Language: English