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by Wang, HF and Gan, FX
APPLIED OPTICS, ISSN 1559-128X, 11/2001, Volume 40, Issue 31, pp. 5658 - 5662
High-density optical data storage requires high-numerical-aperture (NA) lenses and short wavelengths, But, with increasing NA and decreasing wavelength, the... 
SUPERRESOLUTION | APERTURES | DEFOCUS | FIELD | FOCUS | OPTICS | EXTENDED DEPTH
Journal Article
Optics Communications, ISSN 0030-4018, 2010, Volume 283, Issue 17, pp. 3213 - 3217
The validity of a focal length function is investigated in designing optical element with long focal depth and high lateral resolution. The designed lenses... 
Fresnel diffraction integral | Lateral resolution | Focal length function | Extended focal depth | AXICON | AXILENS | HIGH TRANSVERSE RESOLUTION | OPTICS | Mathematical models | Phase modulation | Aberration | Mathematical analysis | Focusing | Lenses
Journal Article
by Wang, HF and Gan, FX
APPLIED OPTICS, ISSN 1559-128X, 09/2002, Volume 41, Issue 25, pp. 5263 - 5266
We propose the use of a phase-shifting apodizers to increase focal depth, and we study the axial and radial behavior of this kind of apodizer under the... 
APERTURES | DEFOCUS | OPTICS | EXTENDED DEPTH | FIELD | FOCUS
Journal Article
Optics Letters, ISSN 0146-9592, 07/2005, Volume 30, Issue 13, pp. 1647 - 1649
We present an annularly distributed phase-only mask that generates an axial irradiance distribution identical to the point spread function of the Dowski-Cathey... 
AMBIGUITY FUNCTION | OPTICS | EXTENDED DEPTH | FIELD
Journal Article
Guangxue Xuebao/Acta Optica Sinica, ISSN 0253-2239, 03/2011, Volume 31, Issue 3
Journal Article
Journal of Modern Optics, ISSN 0950-0340, 10/2008, Volume 55, Issue 17, pp. 2857 - 2863
Extended focal depth and focal shift are very important in microscopy, imaging and optical storage systems, and have attracted much attention in recent years.... 
tunable pupil filter | extended focal depth | focal shift | superresolution | Focal shift | Superresolution | Tunable pupil filter | Extended focal depth | PHASE | OPTICAL-SYSTEM | OPTICS | LENS
Journal Article
Optics Express, ISSN 1094-4087, 06/2010, Volume 18, Issue 12, pp. 12798 - 12806
A more computationally tractable method to design a multiplexed phase diffractive optical element with optical design software to extend the depth of focus is... 
SYSTEM | OPTICS | EXTENDED DEPTH | LENSES | FIELD | FOCUS
Journal Article
APPLIED OPTICS, ISSN 1559-128X, 05/2000, Volume 39, Issue 14, pp. 2321 - 2325
The Strehl definition along the axis of a birefringent lens sandwiched between two polarizers is studied analytically. The optic axis of the birefringent lens... 
IMAGERY | OPTICS | EXTENDED DEPTH | FIELD | FOCUS
Journal Article
Optics Express, ISSN 1094-4087, 08/2007, Volume 15, Issue 16, pp. 10266 - 10273
We propose to improve the depth of field of Integral Imaging systems by combining an array of phase masks with the traditional lenslet array. We show that... 
RECONSTRUCTION | RESOLUTION | REAL | OPTICS | EXTENDED DEPTH | HIGH FOCAL DEPTH | ARRAYS
Journal Article
Optical Engineering, ISSN 0091-3286, 06/2005, Volume 44, Issue 6, pp. 063001 - 063009
The axial intensity distribution and focal depth of an apodized focusing optical system are theoretically investigated with two kinds of incident light fields:... 
Gaussian beam | apodizer | intensity distribution | depth of focus | optical data storage | Apodizer | Optical data storage | Intensity distribution | Depth of focus | SUPERRESOLUTION | FIELD | OPTICS | EXTENDED DEPTH
Journal Article
by Ryu, S and Joo, C
OPTICS EXPRESS, ISSN 1094-4087, 11/2017, Volume 25, Issue 24, pp. 30312 - 30326
We present a novel design approach for a binary phase mask with depth-of-focus (DoF) extension ability. Our method considers that the binarized version of an... 
PUPIL FILTERS | AIRY BEAMS | FIELD | LIGHT-SHEET MICROSCOPY | ADAPTIVE OPTICS | HIGH-RESOLUTION | BESSEL-BEAM | OPTICS | EXTENDED DEPTH | HIGH FOCAL DEPTH | POLARIZED-LIGHT
Journal Article
Proceedings of SPIE - The International Society for Optical Engineering, ISSN 0277-786X, 2012, Volume 8429
Conference Proceeding
Optics Express, ISSN 1094-4087, 08/2008, Volume 16, Issue 17, pp. 12995 - 13004
The introduction of spherical aberration in a lens design can be used to extend the depth of field while preserving resolution up to half the maximum... 
EXTENDED DEPTH | FOCAL DEPTH | OPTICS | Image Enhancement - instrumentation | Microscopy - instrumentation | Equipment Design | Equipment Failure Analysis | Imaging, Three-Dimensional - instrumentation | Lenses
Journal Article
Optics Express, ISSN 1094-4087, 08/2018, Volume 26, Issue 16, pp. 21210 - 21218
A radial Walsh filter is a phase binary diffractive optical element characterized by a set of concentric rings that take the phase values 0 or pi,... 
OPTICS | LENS | HIGH FOCAL DEPTH | FILTERS
Journal Article
Applied Optics, ISSN 1559-128X, 08/2016, Volume 55, Issue 22, pp. 5931 - 5935
This paper presents a theoretical analysis and computation of aberration coefficients of the third and fifth order of transverse spherical aberration of an... 
FIELD MICROSCOPY | EXTENSION | OPTICS | EXTENDED DEPTH | LENSES | HIGH FOCAL DEPTH | Optics | Aberration | Research | Bundling | Computation | Mathematical analysis | Systems analysis | Confusion | Circles (geometry)
Journal Article
by Yang, QG and Liu, LR and Sun, HF
OPTICS COMMUNICATIONS, ISSN 0030-4018, 04/2007, Volume 272, Issue 1, pp. 56 - 66
By properly designing a phase pupil mask to modulate or encode the optical images and then digitally restoring them, one can greatly extend the depth of field... 
OTF | phase pupil mask | ABERRATION | APERTURES | extended depth of field | optimization | FOCUS | IMAGING-SYSTEMS | OPTICS | PLATE | HIGH FOCAL DEPTH
Journal Article
Applied Optics, ISSN 1559-128X, 01/2017, Volume 56, Issue 1, pp. A104 - A114
For controlling the depth of field, in an optical system working at full pupil apertures, we unveil the use of a pair of hyperbolic phase masks. For suitably... 
PUPIL MASKS | HIGH-RESOLUTION | FOCUS | PHASE MASK | LOGARITHMIC ASPHERE | AMBIGUITY FUNCTION | IMAGING-SYSTEMS | OPTICS | EXTENDED DEPTH | APODIZER | HIGH FOCAL DEPTH | Optics | Absorption | Research | Transfer functions | Analysis | Tests, problems and exercises | Artifacts | Noise reduction | Apertures | Optical communication | Optical transfer function | Proposals | Pupils | Masks
Journal Article
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, ISSN 1084-7529, 08/2011, Volume 28, Issue 8, pp. 1716 - 1720
We propose an approach to the generation of nondiffracting quasi-circularly polarized beams by a highly focusing azimuthally polarized beam using an amplitude... 
OPTICAL COHERENCE MICROSCOPY | BESSEL-GAUSS BEAM | FOCAL DEPTH | FIELD | FOCUS | LIGHT | DIFFRACTION | NEEDLE | OPTICS | EXTENDED DEPTH
Journal Article
Journal of the Optical Society of America B: Optical Physics, ISSN 0740-3224, 02/2017, Volume 34, Issue 2, pp. 374 - 382
Novel multifocal flat metasurface (MS) lenses are developed using two techniques: (i) polarization diversity, and (ii) annular segmentation of the lens... 
BEAM | VISIBLE-LIGHT | POLARIZATION MANIPULATION | OF-FIELD | WAVELENGTHS | DYNAMICS | LONG FOCAL DEPTH | HIGH TRANSVERSE RESOLUTION | OPTICS | EXTENDED DEPTH | MICROSCOPY | Polarization | Beams (radiation) | Annular | Apertures | Mathematical models | Nanostructure | Elongation | Lenses
Journal Article
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