Reinvestigation on the frequency dispersion of a grating-pair compressor

Abstract

The typical phase correction term introduced in a diffraction grating-pair is rediscussed. It shows that the correction causes a conceptual difficulty in geometrical optics. A study reveals that Fraunhofer diffraction explains the correction and only mean-phase light rays are allowed for diffraction analysis. Besides, an equivalent phase formulation without correction is recommended.

The detection of gravitational waves: the contribution of the Applied Physics Institute, Russian Academy of Sciences

“…These coordinates will allow, for geometric reasons, to determine maximum beam size 𝑑 depending on the parameters of the compressor and the input pulse. The expression for Ψ is available in [18,27]; in the chosen coordinate system it has the form:…”

Programmable Jigsaw Puzzles of Soft Materials Enabled by Pixelated Holographic Surface Reliefs

“…[3,4] When scaling down the size of each piece of the jigsaw puzzle and extending the concealed information to contain both light polarization and phase, the concept of optical jigsaw puzzles aiming for programmable optics can be obtained. It is known that the functions of traditional optical elements are endowed by a complex phase wavefront, e.g., an imaging lens has a parabolashaped phase distribution, and a grating has a periodic phase distribution, [5,6] and are expressed using the curved interface between different optical materials in geometrical optics. Metasurfaces, [7,8] composed of pixelated nanoantennas with different parameters of orientation, size, aspect ratio, spacing, etc., to obtain delicate control over the optical phase, polarization, or amplitude, have attracted tremendous scientific and industrial interest.…”