NDLI: High-efficiency diffractive focusing deflecting element

Content Provider	Springer Nature Link
Author	Lenkova, G. A.
Copyright Year	2015
Abstract	The shape of the diffractive structure of a deflecting kinoform element designed for focusing high-power laser beams with a wavelength of 10.6 µm is studied. Formulas are derived for calculating light losses induced by tilting of the incident beam, diffraction, and technological blurring of the steep slope of the structure. It is demonstrated that the height of the structure varies from the minimum to the maximum value depending on the azimuthal angle. It is found that light loss induced by shadowing due to oblique incidence of the beam is rather low (0.6–1.3%), and that caused by diffraction is smaller by an order of magnitude and can be neglected. The light losses induced by technological blurring of the slope and by deviation of the structure height from the design value (in the case of violation of the azimuthal dependence) can exceed 10%.
Starting Page	560
Ending Page	567
Page Count	8
File Format	PDF
ISSN	87566990
Journal	Optoelectronics, Instrumentation and Data Processing
Volume Number	51
Issue Number	6
e-ISSN	19347944
Language	English
Publisher	Allerton Press
Publisher Date	2016-01-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	deflecting focusing element diffractive structure efficiency light loss Optics, Optoelectronics, Plasmonics and Optical Devices
Content Type	Text
Resource Type	Article
Subject	Instrumentation Condensed Matter Physics Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Multibeam laser writing of diffractive optical elements

Silicon diffractive optical elements for high-power monochromatic terahertz radiation

Laser illuminator based on diffraction elements for training systems

Diffractive elements for a free electron laser

Diffractive-refractive intraocular lenses

Eye models with a diffractive-refractive lens

Light focusing through strongly scattering media by binary amplitude modulation

Non-polarization and high-coupling-efficiency coupler using multilevel grating structure

Sensitivity of an optimized contour mask technique to errors in fabricating piecewise continuous relief diffractive optical elements

High-efficiency diffractive focusing deflecting element

Similar Documents

Multibeam laser writing of diffractive optical elements

Silicon diffractive optical elements for high-power monochromatic terahertz radiation

Laser illuminator based on diffraction elements for training systems

Diffractive elements for a free electron laser

Diffractive-refractive intraocular lenses

Eye models with a diffractive-refractive lens

Light focusing through strongly scattering media by binary amplitude modulation

Non-polarization and high-coupling-efficiency coupler using multilevel grating structure

Sensitivity of an optimized contour mask technique to errors in fabricating piecewise continuous relief diffractive optical elements

High-efficiency diffractive focusing deflecting element