Focusing of light beams by the phase apodization pupil
Reddy A.N.K., Martinez-Corral M., Khonina S.N., Karpeev S.V.

Samara National Research University, 443086, Russia, Samara, Moskovskoye Shosse 34,
School of Engineering, Anurag Group of Institutions, Venkatapur, Ghatkesar, Medchal district, Hyderabad - 500008, Telangana, India,
3D imaging and Display Laboratory, Department of Optics and Optometry, University of Valencia, E-46100 Burjassot, Spain,

IPSI RAS – Branch of the FSRC “Crystallography and Photonics” RAS, Molodogvardeyskaya 151, 443001, Samara, Russia

We investigated reduction of the size of the illuminated beam in the focal region produced by the optical systems of NA = 0.99 has been. The intensity distributions of polarized light field in the focal volume for the phase apodization pupil have been discussed. The circular pupil in different phase apodization situations can be employed to control the field components in the resultant intensity distribution. We show that both axial and transverse resolution improvement in the focal distribution is possible by applying proper phase engineering in the annulus of the pupil function.

Ключевые слова:
focal spot, phase apodization, linear polarization, resolution, high numerical aperture focusing system.

Reddy ANK, Martinez-Corral M, Khonina SN, Karpeev SV. Focusing of light beams with the phase apodization of the optical system. Computer Optics 2018; 42(4): 620-626. DOI: 10.18287/2412-6179-2018-42-4-620-626.


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