Large aperture, high-efficiency multilayer dielectric reflection gratings

Low-loss grating for coupling to a high-finesse cavity

“…This value is to be compared with routinely produced maximum diffraction efficiencies of about 95 % [7]. To our knowledge the highest value ever reported so far is also not greater than 99 % [9]. Therefore the 2nd order Littrow configuration is the appropriate choice for efficient low-loss coupling to a linear resonator.…”

“…To our knowledge the highest value ever reported so far is also no greater than 99%. 8 Therefore the 2nd-order Littrow configuration is the appropriate choice for efficient low-loss coupling to a linear resonator.…”

An overview of LLNL high-energy short-pulse technology for advanced radiography of laser fusion experiments

“…Extensive efforts are underway at LLNL to develop the new tools and metrology required for the extension of MLD grating fabrication from the tens of centimetres to the metre-scale. In 2000, LLNL fabricated an MLD grating 355 × 150 mm 2 in aperture that exhibited >99% diffraction efficiency for 1030 nm light at 63˚incidence angle, that was used for a highaverage power 50 W short-pulse machining laser [11]. In 2002, Jobin-Yvon-Horiba delivered high-peak power MLD gratings at 420×210 mm 2 aperture to France's LULI laser [12].…”

Universal strategies for enhancing the laser energy loading capability of pulse compression gratings

“…Multilayer dielectric gratings (MDGs) with high LIDTs to support picosecond highenergy pulse compression are a core technical challenge to achieve the current energy-loading capability of large laser facilities such as SG-II and National Ignition Facility's Advanced Radiographic Capability (NIF-ARC). Currently, MDGs in picosecond-petawatt laser systems are all TE-polarized with high-dispersion large-incident-angle, and the available grating LIDTs are approaching limits [9][10][11][12][13][14][15] .…”