6533b863fe1ef96bd12c77d6
RESEARCH PRODUCT
Second order diffractive optical elements in a spatial light modulator with large phase dynamic range
José Luis MartínezPascuala García-martínezJorge AlberoIgnacio Morenosubject
PhysicsSpatial light modulatorbusiness.industryDynamic rangeMechanical EngineeringResolution (electron density)Phase (waves)Physics::Optics02 engineering and technology021001 nanoscience & nanotechnologyDiffraction efficiency01 natural sciencesAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materials010309 opticsWavelengthOptics0103 physical sciencesOptoelectronicsElectrical and Electronic Engineering[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics0210 nano-technologybusinessDiffraction gratingPhase modulationdescription
International audience; A study of the diffraction efficiency of a spatial light modulator with a large dynamic phase range is reported. We use a phase-only device that reaches 4π phase modulation depth for the wavelength of 454 nm. This allows operating phase-only diffractive optical elements in the second harmonic diffraction order, instead of in the usual first diffraction order. This type of implementation shows advantages in terms of resolution and diffraction efficiency. Experimental results are reported for blazed diffractive gratings and diffractive lenses.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-02-01 |