Superresolution by means of polarisation, phase and amplitude pupil masks

Pereira, Silvania F.; Nes, A.S. van de

doi:10.1016/j.optcom.2004.02.020

Cited by 92 publications

(36 citation statements)

References 12 publications

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“…Because of its sufficient birefringence and small thickness, cellophane can be used to fabricate special polarization pupil masks by cutting and aligning cellophane structures appropriately. Such a mask has been proposed in a theoretical paper on super resolution [13] and shown to be a potential candidate of narrowing down the focal spot of a highly focused laser beam.…”

Section: Discussionmentioning

confidence: 99%

Interferometry Analysis of Cellophane Birefringence

Kinyua¹,

Rurimo²,

Karimi³

et al. 2013

OPJ

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This paper reports on a simple approach of determining the ability of a transparent material, such as cellophane to rotate the direction of polarization of a light beam. In order to determine the birefringence of such a material, a Mach-Zehnder interferometer is used to generate interference patterns when the cellophane sheet is mounted on one arm such as to intercept a portion of the laser beam. The recorded interferograms show a phase shift which is calculated to be 0.98π radians. By rotating the cellophane sheet on the object beam, the fringe separation is measured for different angles and the values used to calculate the ordinary and extraordinary refractive indices as 1.4721 ± 0.0002 and 1.4680 ± 0.0002 respectively at 632.8 nm wavelength. A surface error of approximately λ/16 (peak to valley) is measured from the recorded interferograms. Because of its sufficient birefringence and small thickness of 24 µm, cellophane can be used to fabricate special polarization pupil masks by cutting and aligning different cellophane structures appropriately.

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Section: Discussionmentioning

confidence: 99%

Interferometry Analysis of Cellophane Birefringence

Kinyua¹,

Rurimo²,

Karimi³

et al. 2013

OPJ

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“…For example, in stimulated emission-depletion (STED) super-resolution microscopy, an azimuthally polarised depletion beam improves the resolution by minimising its on-axis electric field [1]. Conversely, a tightly focused radially polarised beam maximises the on-axis electric field leading to a sharper focus which has further applications in micro-machining and microscopy [2,3]. In optical trapping, a radially polarised beam potentially improves the trapping efficiency of metallic nano-particles [4], and a circular polarisation state exerts torque on birefringent particles making them spin in a direction controlled by the handedness of the incoming beam [5].…”

Section: Introductionmentioning

confidence: 99%

High-speed spatial control of the intensity, phase and polarisation of vector beams using a digital micro-mirror device

et al. 2016

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Abstract:The dynamic spatial control of light fields is essential to a range of applications, from microscopy to optical micro-manipulation and communications. Here we describe the use of a single digital micro-mirror device (DMD) to generate and rapidly switch vector beams with spatially controllable intensity, phase and polarisation. We demonstrate local spatial control over linear, elliptical and circular polarisation, allowing the generation of radially and azimuthally polarised beams and Poincaré beams. All of these can be switched at rates of up to 4kHz (limited only by our DMD model), a rate ∼2 orders of magnitude faster than the switching speeds of typical phase-only spatial light modulators. The polarisation state of the generated beams is characterised with spatially resolved Stokes measurements. We also describe detail of technical considerations when using a DMD, and quantify the mode capacity and efficiency of the beam generation. The high-speed switching capabilities of this method will be particularly useful for the control of light propagation through complex media such as multimode fibers, where rapid spatial modulation of intensity, phase and polarisation is required. Alfano et al., "4 × 20 gbit/s mode division multiplexing over free space using vector modes and a q-plate mode (de) multiplexer," Opt. Lett. 40, 1980Lett. 40, -1983Lett. 40, (2015. 8. S. Popoff, G. Lerosey, R. Carminati, M. Fink, A. Boccara, and S. Gigan, "Measuring the transmission matrix in optics: an approach to the study and control of light propagation in disordered media," Phys. Rev. Lett. 104, 100601 (2010). 9. S. Bianchi and R. Di Leonardo, "A multi-mode fiber probe for holographic micromanipulation and microscopy," Lab Chip 12, 635-639 (2012). 10. T.Čižmár and K. Dholakia, "Exploiting multimode waveguides for pure fibre-based imaging," Nat. Commun. 3, 1027Commun. 3, (2012. 11. J. Carpenter, B. J. Eggleton, and J. Schröder, "110x110 optical mode transfer matrix inversion," Opt. Express 22, 96-101 (2014). 12. C. Maurer, A. Jesacher, S. Bernet, and M. Ritsch-Marte, "What spatial light modulators can do for optical microscopy,"Laser Photon. Rev. 5, 81-101 (2011 728-735 (2015). 33. W.-H. Lee, "Binary computer-generated holograms," Appl. Opt. 18, 3661-3669 (1979) 34. J. Courtial, "Self-imaging beams and the guoy effect," Opt. Commun. 151, 1-4 (1998). 35. R. Dorn, S. Quabis, and G. Leuchs, "Sharper focus for a radially polarized light beam," Phys. Rev. Lett. 91, 233901 (2003). 36. L. Allen, M. W. Beijersbergen, R. Spreeuw, and J. Woerdman, "Orbital angular momentum of light and the transformation of laguerre-gaussian laser modes," Phys. Rev. A 45, 8185 (1992). 37. E. Galvez, P. Crawford, H. Sztul, M. Pysher, P. Haglin, and R. Williams, "Geometric phase associated with mode transformations of optical beams bearing orbital angular momentum," Phys. Rev. Lett. 90, 203901 (2003). 38. J. Dyment, "Hermite-gaussian mode patterns in GaAs junction lasers," Appl. Phys. Lett. 10, 84-86 (1967). 39. T.Čižmár, M. Mazilu, and K. Dh...

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“…Imaging systems with a high depth-of-field (DOF) are required in many applications across different fields [1][2][3][4][5], such as microscopy [6][7][8] and communications [9]. However, most imaging systems described in the literature are very sensitive to defocusing.…”

Section: Introductionmentioning

confidence: 99%

Shaded-Mask Filtering for Extended Depth-of-Field Microscopy

Escobar¹,

Saavedra²,

Martı́nez-Corral³

et al. 2013

Journal of information and communication convergence engineerin

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This paper proposes a new spatial filtering approach for increasing the depth-of-field (DOF) of imaging systems, which is very useful for obtaining sharp images for a wide range of axial positions of the object. Many different techniques have been reported to increase the depth of field. However the main advantage in our method is its simplicity, since we propose the use of purely absorbing beam-shaping elements, which allows a high focal depth with a minimum modification of the optical architecture. In the filter design, we have used the analogy between the axial behavior of a system with spherical aberration and the transverse impulse response of a 1D defocused system. This allowed us the design of a ring-shaded filter. Finally, experimental verification of the theoretical statements is also provided.

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Superresolution by means of polarisation, phase and amplitude pupil masks

Cited by 92 publications

References 12 publications

Interferometry Analysis of Cellophane Birefringence

Interferometry Analysis of Cellophane Birefringence

High-speed spatial control of the intensity, phase and polarisation of vector beams using a digital micro-mirror device

Shaded-Mask Filtering for Extended Depth-of-Field Microscopy

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