Modulated Apertures and Resolution in Microscopy

ISBN-13: 9783031475511 / Angielski / Miękka / 2023

Abdallah Mohamed Hamed

Opis

This book serves as a valuable resource for researchers and graduate students specializing in optical engineering and optical sciences. Comprising three distinct parts, it addresses fundamental aspects and practical applications of modulated apertures in microscopy. The first part delves into the fabrication of modulated apertures and the computation of impulse responses or point spread functions (PSFs). It offers essential insights into the foundational concepts of modulated aperture design. The second part focuses on the utilization of modulated apertures in speckle imaging, elucidating their significance and relevance in this context. This section provides a comprehensive understanding of the practical applications of modulated apertures in image formation. The third and final part explores the application of modulated apertures within the framework of a confocal scanning laser microscope. The objective here is to enhance microscope resolution and image contrast, contributing to the advancement of microscopy techniques. This book offers a concise and objective exploration of modulated apertures' fabrication, applications, and their potential to enhance microscopy. This book is a valuable reference for students and researchers seeking to deepen their knowledge in this specialized field.

Spis treści

Part I: The impulse response for modified apertures and

resolution in microscopy ----- 4    

Chapter 1. Resolution in microscopy and defect of

focus with modulated apertures --------   

5

Chapter 2: Linear aperture-----------------------------------------------------------------------------

17                                              

Chapter 3: pupils with radially transmission r ⁿ

distribution---------------------------------------22

Chapter 4: Linear -

quadratic aperture ---------------------------------------------------------------

34                                            

Chapter 5: Hamming

aperture -------------------------------------------------------------------------

49                                       

                                        

Chapter 6:

Longitudinal strips inside the circular aperture

---------------------------------------- 62

Chapter 7: Deformed

cardiac and elliptical apertures ----------------------------------------------

76

Chapter 8: A new

model of modulated aperture

---------------------------------------------------- 86

Part II: Formation of speckle images using modulated

apertures --------------------------

100   

Chapter 9: Speckle images formed by diffusers using conical

and linear apertures ---------

Chapter 10: Recognition of direction of new apertures

from the elongated speckle images ---

Chapter 11: Speckle

images modulated by a new Hamming- linear aperture-----------------

Chapter 12: Speckle

images using Gaussian and graded - index apertures --------------------

Chapter 13:

Contrast of speckle images using modulated apertures ----------------------------

Part III. Application on confocal laser

microscope       

Chapter 14: Design of a Cascaded Black–Linear

Distribution (CBLD) in circular aperture -Application on Confocal Scanning

Laser Microscope ------------------------------------------

Chapter 15: A hyper- resolving

polynomial aperture and its application on confocal microscope

Chapter 16: A study on

misaligned linear and quadratic apertures in Confocal Scanning Laser Microscope

(CSLM)

-----------------------------------------------------------------------------------

O autorze

Abdallah Mohamed Hamed graduated from Ain Shams University with a B.Sc. in Physics in 1973, achieving an Excellent with Honors degree. Subsequently, he earned an M.Sc. in Laser Optics from the same university in 1976. In 1978, he was awarded a scholarship in France, culminating in the acquisition of a Doctor of Physics degree in 1985.

His scholarly contributions include 76 international scientific publications, with 51 of these publications being indexed in Scopus, reflecting their notable impact in the field. Moreover, he actively participates in international scientific organizations and serves as a reviewer for various scientific journals such as Opt. Eng., J. Modern Opt., Opt. & Laser Tech., and Opt. Communication.