Marc SeGall
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View article: Versatile approach to laser beam shaping and analyzing by holographic phase masks
Versatile approach to laser beam shaping and analyzing by holographic phase masks Open
A new technology that includes a flexible holographic recording system using photo-thermo-refractive (PTR) glass is demonstrated for creating so-called 'holographic phase masks' or HPMs. These diffractive optical elements are permanently r…
View article: Achromatic complex holograms for laser mode conversion
Achromatic complex holograms for laser mode conversion Open
While conventional complex phase masks are chromatic, we present an achromatic holographic phase mask capable of performing optical beam transformations in a spectral range exceeding 1000 nm. The system consists of a holographic phase mask…
View article: Holographically encoded volume phase masks
Holographically encoded volume phase masks Open
We present here a method to create spectrally addressable phase masks by encoding phase profiles into volume Bragg gratings, allowing these holographic elements to be used as phase masks at any wavelength capable of satisfying the Bragg co…