Wave optics analysis by phase-shifting real-time holographic interferometry

Gesualdi, Marcos R. R.; Muramatsu, Mikiya; Soga, Diogo; Paiva, Raul Dias

doi:10.1016/j.ijleo.2008.05.019

Cited by 8 publications

(8 citation statements)

References 17 publications

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“…3.2. Phase analysis of Airy-vortex beams using Digital Holography -The characterization of the phase distribution of this type of special beam has been made interferometric and holographic techniques [26,32,25,22,23,24]. Particularly in this work, the phase distribution was made via digital holography using the angular spectrum method.…”

Section: Experimental Generation and Analysis Of Airy-vortex Beams Vi...mentioning

confidence: 99%

Generation and characterization of an array of Airy-vortex beams

Suarez

Neves

Gesualdi

2020

Optics Communications

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We present the experimental generation and analysis of both the intensity and phase of an optical vortex beam originating from a superposition of Airy-vortex beams. A new theoretical proposal is accessible to generate an array of Airy-vortex beams (AiVBs) from a superposition of N identical AiBs symmetrically located with respect to the propagation axis, where each beam is superimposed with OV and are characterized by the same topological charge l. Additionally, a single experimental apparatus enables both the optical generation and reconstruction of computer-generated holograms implemented on a spatial light modulator and its phase analysis by digital holography. The experimental results agreed with the theoretical predictions. The array of Airy-vortex beams has potential applications for trapping and rotating micro-particles in optical tweezers, modulation in optics communications, optical metrology, and others in optics and photonics. arXiv:1909.05031v1 [physics.optics]

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Section: Experimental Generation and Analysis Of Airy-vortex Beams Vi...mentioning

confidence: 99%

Generation and characterization of an array of Airy-vortex beams

Suarez

Neves

Gesualdi

2020

Optics Communications

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“…The recording holographic in photorefractive crystal occurs via photorefractive effect which is a phenomenon where the refractive index of the medium is modulated by the incidence of a beam of light with spatial variation of the intensity. this modulation is given by ∆n = (−1/2) n 3 r 13 E sc in diffusive regime [21,22,23,24,18]. For the reconstruction of the hologram, the object beam is blocked and the crystal output is positioned a polarized P 4 that blocks the transmitted beam allowing the passage of the diffracted beam that contains information about the hologram, the holographic image.…”

Section: Generation Of Airy Beams Using Photorefractive Holographymentioning

confidence: 99%

“…Photorefractive holography has been presented as a promising technique for dynamic processing of record-holographic reconstruction and holographic interferometry techniques to analyze surfaces and optical wavefronts [20,21,22,23,24,18]. This is based on the photorefractive effect, consisting in modulation of the refractive index via photoinduction of charge carriers and linear electro-optic effect in some semiconductor crystals with a particular features, the so-called photorefractive crystals (LiN bO 3 , SBN, KBT, BaT iO 3 , Bi 12 T iO 20 , among others) [20].…”

Section: Introductionmentioning

confidence: 99%

“…In BTO crystals we must consider the optical activity of the medium, this effect acts on the beam so as it propagates through the volume of the crystal polarization is rotated by θ a o = ρ ao L where ρ ao is the coefficient of optical activity. If λ is the recording wave length, L is the thickness, m is the modulation of the incident interference pattern and 2α is the angle between the interfering beams, the diffraction efficiency of photorefractive hologram is given by[20,21,22,23,24,18] For holographic recording medium we used the BTO crystal (Bi 12 T iO20 ), of the silenite family, in diffusive regimen with dimensions (9×8×3mm 3 L = 3mm and electro-optical transverse configuration). This crystal has a lower band gap compared to other crystals, such as (B 12 SiO 20 ) or (B 12 GeO 20 ), which makes it suitable for wavelengths in the red region, as is the case of the laser He-Ne (λ = 632, 8nm) used in our work.…”

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confidence: 99%

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Photorefractive and computational holography in the experimental generation of Airy beams

Suarez

Vieira

Yepes

et al. 2016

Optics Communications

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In this paper, we present the experimental generation of Airy beams via computational and photorefractive holography. Experimental generation of Airy beams using conventional optical components presents several difficulties and are practically infeasible. Thus, the optical generation of Airy beams has been made from the optical reconstruction of a computer generated hologram implemented in a spatial light modulators. In the photorefractive holography technique, being used for the first time to our knowledge, the hologram of an Airy beam is constructed (recorded) and reconstructed (reading) optically in a nonlinear photorefractive medium. The Airy beam experimental realization was made by a setup of computational and photorefractive holography using a photorefractive Bi 12 T iO 20 crystal as holographic recording medium. Airy beams and Airy beam arrays were obtained experimentally as in accordance with the predicted theory; and present excellent prospects for applications in optical trapping and optical communications systems.

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“…Subsequently, materials that dispensed the chemical processing emerged: the photorefractive crystals, which are used as recording medium in Photorefractive Holography [6,7]. This technique has been broadly applied in surface contouring and in phase-shifting real time interferometry [8,9,10,11,12,13,14], as well as in microscopy [15,16].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Digital Holography for recording and reconstruction of 3D images using optoelectronic devices

Yepes

Gesualdi

2017

J. Microw. Optoelectron. Electromagn. Appl.

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Abstract-In this work, we present the optical recording and reconstruction of dynamic 3D digital holograms using optoelectronic devices. Digital Holography technique allows recording and reconstruction of three-dimensional images of real objects, since a hologram presents both the intensity and phase information about the object. The experimental implementation of digital holographic systems for recording, as well as for numerical and optical reconstruction of three-dimensional objects became possible. We developed an experimental setup that allowed the optical recording (construction) of dynamic digital holograms (DHs) from real three-dimensional objects in CCD cameras, together with their numerical reconstruction and their optical reconstruction in a dynamic process by using a spatial light modulator, SLM; it was used a single holographic experimental setup in the entire process. We have obtained good results that enable excellent prospects for applications in recording and reconstruction of 3D scenes.

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Wave optics analysis by phase-shifting real-time holographic interferometry

Cited by 8 publications

References 17 publications

Generation and characterization of an array of Airy-vortex beams

Generation and characterization of an array of Airy-vortex beams

Photorefractive and computational holography in the experimental generation of Airy beams

Dynamic Digital Holography for recording and reconstruction of 3D images using optoelectronic devices

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