Using irrational linear slopes to increase the precision of spatial light modulators for attosecond metrology

POSTER

Abstract

We present a method to increase the effective phase bit-depth of Spatial Light Modulators (SLMs) which utilizes an irrational linear slope as is commonly used to deal with the zeroth order effect. The effectiveness of this technique was demonstrated using precise interferometric transient absorption spectroscopy setups. These setups use high harmonic generation in both solids and gases to generate two ultraviolet pulses that interfere in a spectrometer, providing a measurement of the optical phase. An increase in phase control beyond what the SLM's digital processors would dictate was observed.

*Research was supported by the US Department of Energy, Office of Science, Chemical Sciences, Geosciences, and Biosciences Division Grant No. (DE-SC0019098). B. D. was supported by the Office of Naval Research, Directed Energy Ultra-Short Pulse Laser Division Grant No. (N00014-19-1-2339).

Publication: Geoffrey R. Harrison, Tobias Saule, Brandin Davis, and Carlos A. Trallero-Herrero, "Increased phase precision of spatial light modulators using irrational slopes: application to attosecond metrology," Appl. Opt. 61, 8873-8879 (2022)

Presenters

  • Geoffrey R Harrison

    • University of Connecticut

Authors

  • Geoffrey R Harrison

    • University of Connecticut

  • Tobias Saule

    • University of Connecticut

  • Brandin Davis

    • University of Connecticut

  • Carlos Trallero A Trallero

    • University of Connecticut