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  3. Wide-Aperture Bimorph Deformable Mirror for Beam Focusing in 4.2 PW Ti:Sa Laser

Wide-Aperture Bimorph Deformable Mirror for Beam Focusing in 4.2 PW Ti:Sa Laser

  • Автор: Samarkin V., Alexandrov A., Galaktionov I., Kudryashov A., Nikitin A., Rukosuev A., Toporovsky V., Sheldakova J.
  • Издательство: Applied Sciences

  The bimorph deformable mirror with a diameter of 320 mm, including 127 control electrodes, has been developed and tested. The flatness of the initial mirror surface of about 1 μm (P-V) was achieved by mechanically adjusting the mirror substrate fixed in the metal mount. To correct for the aberrations and improve the beam focusing in the petawatt Ti:Sa laser, the wide-aperture adaptive optical system with the deformable mirror and Shack–Hartmann wavefront sensor was developed. Correction of the wavefront aberrations in the 4.2 PW Ti:Sa laser using the adaptive system provided increases the intensity in the focusing plane to a value of 1.1 × 1023 W/cm2 

Samarkin V, Alexandrov A, Galaktionov I, Kudryashov A, Nikitin A, Rukosuev A, Toporovsky V, Sheldakova J. Wide-Aperture Bimorph Deformable Mirror for Beam Focusing in 4.2 PW Ti:Sa Laser. Applied Sciences. 2022; 12(3):1144. https://doi.org/10.3390/app12031144