Third-harmonic generation microscopy with tightly focused radial polarization

Yang, Shuangyang; Zhan, Qiwen

doi:10.1088/1464-4258/10/12/125103

Cited by 25 publications

(12 citation statements)

References 16 publications

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“…On the other hand, SHG from a crystal can also be used to produce radially polarized light 37c. Additionally, theoretic simulations suggest that even third harmonic generation (THG) from a bulk sample under defined conditions should be detectable 99. Moreover, RPDMs are important to improve the resolution in two‐photon microscopy 100.…”

Section: Doughnut Modes For Nonlinear‐optics Microscopymentioning

confidence: 99%

Light Microscopy with Doughnut Modes: A Concept to Detect, Characterize, and Manipulate Individual Nanoobjects

2011

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Higher order laser modes, mainly called doughnut modes (DMs) have use in many different branches of research, such as, bio-imaging, material science, single-molecule microscopy, and spectroscopy. The main reason of their increasing importance is that recently, the techniques to generate well-defined DMs have been refined or rediscovered. Although their potential is still not fully utilized, their specifically polarized field distribution gives rise to a wide field of applications. They are contributing to complete our fundamental knowledge of the optical properties of single emitting species, such as molecules, nanoparticles, or quantum dots, offering insight into the three-dimensional dipole or particle orientation in space. The perfect zero intensity in the focus center qualifies some DMs for stimulated emission depletion (STED) microscopy. For the same reason, they have been suggested for trapping and tweezing applications.

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Section: Doughnut Modes For Nonlinear‐optics Microscopymentioning

confidence: 99%

Light Microscopy with Doughnut Modes: A Concept to Detect, Characterize, and Manipulate Individual Nanoobjects

2011

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“…For example, by adjusting the annular illumination geometry, it has been shown that THG from bulk materials may be detectable with better achievable spatial resolution using radially polarized illumination. 27 The capability of producing smaller focus with radial polarization has been experimentally confirmed and lead to significant interests in applying CV beams in laser micro-fabrication and imaging. The supremacy of radial polarization can be understood from the point of view of electric dipole radiation.…”

Section: Cylindrical Vector Beams Under High Na Focusingmentioning

confidence: 96%

Chapter 1: Cylindrical Vector Beams

Zhan

2013

Vectorial Optical Fields

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Cylindrical vector beams are considered one special class of optical vector fields as the axially symmetric beam solution to the full vector electromagnetic wave equation. In this chapter, a brief introduction of the mathematical and graphical descriptions of the cylindrical vector beams will be provided. Various active and passive methods to generate these cylindrical vector beams are reviewed. Expressions for the focal field distributions of the cylindrical vector beams focused by high numerical aperture objective lens are derived. The cylindrical polarization symmetry of this special class of optical vector beams gives rise to unique focusing properties under high numerical aperture condition with important applications including optical imaging and manipulation.

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“…Focus engineering using radially, azimuthally and cylindrically polarized beams have been studied through engineering the amplitude, phase and polarization within the pupil. 7 Many interesting focal field distributions such as optical needle, [26][27][28][29][30]31 three-dimensional (3D) flattop focus, 16,17,32 optical bubble or cage enclosed by light field, 17, 33-38 3D optical chain, 39 spherical spot 10,41 or spot array 42 etc., have been created.…”

Section: Three-dimensional Focus Shaping With CV Beamsmentioning

confidence: 99%

Chapter 4: Comprehensive Focal Field Engineering With Vectorial Optical Fields

Chen¹,

Zhan²

2013

Vectorial Optical Fields

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The propagation and focusing properties of spatially variant polarization remain of continued research interest owing to their promising applications in physics, chemistry and biological sciences. The main challenges to these applications are the optimization of focus shape, size and the control of polarization distribution within the focal volume. In this chapter, systematic approaches that are suitable for comprehensive three-dimensional focal field engineering are reviewed. Threedimensional flattop focusing with extended depth of focus and optical bubble is illustrated through the use of generalized cylindrical vector beam illumination and diffractive optical element (DOE). Combining the radiation pattern from an electric dipole and the Richards-Wolf vectorial diffraction method, the required input field at the pupil plane of a high numerical aperture objective lens for generating arbitrary threedimensional polarization at the focal point with an optimal spot size can be found analytically by solving an inverse problem. Diffraction-limited spherical spots with three-dimensionally controllable polarization can be realized through applying this radiation reversal approach to 4-π microscopy. Several other exotic optical focal field distributions, such as high purity longitudinally polarized optical needle field with extended depth of focus, extremely long optical tube and uniform optical chain, are demonstrated through the reversal of the radiation pattern from linear electric and magnetic dipole arrays. Vectorial Optical Fields Downloaded from www.worldscientific.com by UNIVERSITY OF BIRMINGHAM LIBRARY -INFORMATION SERVICES on 03/21/15. For personal use only. 126 W. Chen and Q. Zhan

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Third-harmonic generation microscopy with tightly focused radial polarization

Cited by 25 publications

References 16 publications

Light Microscopy with Doughnut Modes: A Concept to Detect, Characterize, and Manipulate Individual Nanoobjects

Light Microscopy with Doughnut Modes: A Concept to Detect, Characterize, and Manipulate Individual Nanoobjects

Chapter 1: Cylindrical Vector Beams

Chapter 4: Comprehensive Focal Field Engineering With Vectorial Optical Fields

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