Advanced Optical Imaging Theory by Min Gu PDF

By Min Gu

ISBN-10: 354048471X

ISBN-13: 9783540484714

ISBN-10: 3662142724

ISBN-13: 9783662142721

Optical microscopy and linked applied sciences complicated speedy after the creation of the laser. The strategies have encouraged extra improvement of optical imaging concept, together with three-dimensional microscopy imaging concept in spatial and frequency domain names, the idea of imaging with ultrashort-pulse beams and aberration conception for high-numerical-aperture pursuits. This booklet introduces those new theories by way of glossy optical microscopy. It involves seven chapters together with an advent. The chapters are geared up to reduce cross-referencing. Comparisons with classical imaging thought are made whilst the recent imaging thought is brought. The e-book is meant for senior undergraduate scholars in classes on optoelectronics, optical engineering, photonics, biophotonics and utilized physics, when they have accomplished glossy optics or an analogous topic. it's also a reference for different scientists attracted to the field.

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More recently, singularity beams have been found to be promising for focusing a beam of atoms in atom optics 2. 15]. In these applications, the Fresnel diffraction pattern generated by a singularity beam plays an important role [2. 16]. There are a number of ways to generate a beam of a phase singularity. 17]. In this method, an interference pattern between a singularity beam and a plane wave is first calculated and then recorded on a photo-sensitive film. When the film which is linearly processed is illuminated by a plane wave, a singularity beam will occur.

10) It is therefore clear that the function h(x, y) defined in Eq. 9) represents the image of a single point object. h(x, y) is thus called the 2-D point spread function (PSF), or the 2-D amplitude point spread function (APSF) as it gives the complex amplitude of the light field. Eq. 2]. Having understood that h(x, y) is the image of a single point object, one can assume that for a good imaging system means, h(x, y) should be physically a function close to the point object. In other words, h(x, y) falls off quickly as long as x and/or y in the function h(x, y) are not equal to zero.

3) x, z 02 o,~----------------------------~------Fig. 2. 4. I Definition of the diffraction plane (the x 1 y 2 plane). - y 1 plane) and the observation plane (the x2 - For a situation that the observation point is not far away from the optical axis, we can approximately assume (x2- x 1)2 + (v 2 - y 1)2 « z2. Thus Eq. e. the paraxial approximation. In obtaining Eq. 4), we have used ~"" 1+xI 2. As a result of the paraxial approximation, an observation point should be close to the optical axis z. Therefore, the factor cos(n,r) can be considered to be unity and the distance r in the denominator of Eq.

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Advanced Optical Imaging Theory by Min Gu

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