Polarization-assisted transverse and axial optical superresolution.
نویسندگان
چکیده
The superposition of two coaxial Gaussian beams with offset foci and orthogonal linear polarizations can be used to produce a right- or leftcircular polarization component with a focal spot of volume smaller than that of the Gaussian beam. This polarization-assisted axial and transverse superresolution effect is attributed to the differential Gouy phase shift within the focal region or to the non-Gaussian annular distribution of the circularlypolarized components in the far field.
منابع مشابه
Three-dimensional superresolution by three-zone complex pupil filters.
Complex pupil filters are introduced to improve the three-dimensional resolving power of an optical imaging system. Through the design of the essential parameters of such filters, the transmittance and radius of the first zone, three-dimensional superresolution is realized. The Strehl ratio and the transverse and axial gains of such filters are analyzed in detail. A series of simulation example...
متن کاملDesign of Superresolved Phase Plates
Diffraction limit is always a key point to almost all optical systems, and diffraction effect is mostly dependent on the numerical aperture of objective and wavelength of light. However, it will be ultimately limited to improve the resolution continuously by increasing the numerical aperture or reducing the wavelength. Here, it is introduced that when these two parameters are fixed, focal spot ...
متن کاملA Simple Marker-Assisted 3D Nanometer Drift Correction Method for Superresolution Microscopy.
High-precision fluorescence microscopy such as superresolution imaging or single-particle tracking often requires an online drift correction method to maintain the stability of the three-dimensional (3D) position of the sample at a nanometer precision throughout the entire data acquisition process. Current online drift correction methods require modification of the existing two-dimensional (2D)...
متن کاملSuperfluid Phase Stability of He in Axially Anisotropic Aerogel
Measurements of superfluid He in 98% aerogel demonstrate the existence of a metastable A-like phase and a stable B-like phase. It has been suggested that the relative stability of these two phases is controlled by anisotropic quasiparticle scattering in the aerogel. Anisotropic scattering produced by axial compression of the aerogel has been predicted to stabilize the axial state of superfluid ...
متن کاملSuperresolution with full-polarized tomographic diffractive microscopy.
Tomographic diffractive microscopy is a three-dimensional imaging technique that reconstructs the permittivity map of the probed sample from its scattered field, measured both in phase and in amplitude. Here, we detail how polarization-resolved measurements permit us to significantly improve the accuracy and the resolution of the reconstructions, compared to the conventional scalar treatments u...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Optics express
دوره 11 15 شماره
صفحات -
تاریخ انتشار 2003