Imaging properties of axicon in a scanning optical system.
نویسندگان
چکیده
The imaging properties of a scanning optical system that incorporates an axicon are presented. Beamshape characteristics including the axial distribution of the J(0) beam and its control and aberration effects arising from off-axis illumination are experimentally studied. These parameters are relevant when the axicon is used in an imaging system operating in the beam-scanning mode. The J(0) pattern produced by a blazed axicon transmittance grating is also presented.
منابع مشابه
Comparison of aberration between axicon and lens
We compared aberrations produced by an axicon and a lens. Using the wave aberration theory and the point spread function of a coherent system, we analyzed and compared the light intensity distributions of the spot created by an axicon and by a lens aberrated by astigmatism and coma. We also experimentally observed the aberrated light spots created by an axicon. We found that the beam spot of an...
متن کاملElectro-Optical Design of Imaging Payload for a Remote Sensing Satellite
Remote sensing using small spacecraft arising from multi-objective economic activity problems is getting more and more developed. These satellites require very accurate pointing to specific locations of interest, with high reliability and small latency. The space borne imaging systems always attempted to achieve the highest ground resolution possible with the available technology at the given t...
متن کاملA 5mm catheter for constant resolution probing in Fourier domain optical coherence endoscopy
A 5mm biophotonic catheter was conceived for optical coherence tomography (OCT) with collimation optics, an axicon lens, and custom design imaging optics, yielding a 360 degree scan aimed at imaging within concave structures such as lung lobes. In OCT a large depth of focus is necessary to image a thick sample with a constant high transverse resolution. There are two approaches to achieving con...
متن کاملSynthesis and characterization of CdO/GrO nanolayer for in vivo imaging
Objective(s): Nanomaterials are playing major roles in imaging by delivering large imaging payloads, yielding improved sensitivity. Nanoparticles have enabled significant advances in pre-clinical cancer research as drug delivery vectors. Inorganic nanoparticles such as CdO/GrO nanoparticles have novel optical properties that can be used to optimize the signal-to-background ratio. This paper rep...
متن کاملBessel beam spectral-domain high-resolution optical coherence tomography with micro-optic axicon providing extended focusing range.
Endoscopic imaging in tubular structures, such as the tracheobronchial tree, could benefit from imaging optics with an extended depth of focus (DOF) to accommodate the varying sizes of tubular structures across patients and along the tree within the same patient. Yet the extended DOF needs to be accomplished without sacrificing resolution while maintaining sufficient sensitivity and speed of im...
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:
- Applied optics
دوره 31 31 شماره
صفحات -
تاریخ انتشار 1992