Liquid crystal has been widely used in display applications, including Augmented Reality (AR) and Virtual Reality (VR) headset. In this paper, we discuss how liquid crystal technology can enable a virtual reality (VR) headset with glass‐type form factor, better image quality, and wearing comfort.
We study ultrafast laser pulse properties as they propagate through optical systems. A modified definition of Strehl ratio is used to quantify the chromatic and temporal behavior of ultrafast laser pulses at the optical focus. We propose this parameter as a figure of merit for the design and analysis of optical systems with ultrafast illumination. A simple method to obtain approximate numerical solutions is given with the help of ray tracing software. Effects of monochromatic aberrations and material dispersion up to the second order are discussed.
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