high diffraction order
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scholarly journals FORMING OF PHASE PROFILES OF HIGH ORDER DIFFRACTIVE ELEMENTS IN HALCOGENIDE LAYERS

2021 ◽  
Vol 8 ◽  
pp. 204-209
Author(s):  
Valery I. Nalivaiko ◽  
Marina A. Ponomareva
Keyword(s):  
Refractive Index ◽  
Diffraction Efficiency ◽  
High Vacuum ◽  
Diffraction Order ◽  
High Order ◽  
Diffractive Optics ◽  
Maximum Efficiency ◽  
Glassy Materials ◽  
High Diffraction ◽  
High Diffraction Order

The possibility of obtaining diffractive optics of a high diffraction order in the form of linear and circular elements in layers of chalcogenide glassy materials is shown. The conditions for obtaining layers by means of automated thermal deposition of them in high vacuum have been improved, which made it possible to double the amplitude of photostructural changes in the refractive index. The maximum diffraction efficiency of the second order of diffraction for linear gratings is obtained. The prospect of manufacturing zone plates with a maximum efficiency of up to 30 orders of magnitude of diffraction is shown.

Ladder-Type Tunable Filter Connected by High-Diffraction-Order Ladder Interferometer for Use in Widely Tunable Laser Diodes

2005 ◽  
Vol 44 (7A) ◽  
pp. 4989-4996
Author(s):  
Seok-Hwan Jeong ◽  
Shinji Matsuo ◽  
Yuzo Yoshikuni ◽  
Toru Segawa ◽  
Yoshitaka Ohiso ◽  
...  
Keyword(s):  
Laser Diodes ◽  
Tunable Laser ◽  
Diffraction Order ◽  
Tunable Filter ◽  
High Diffraction ◽  
High Diffraction Order
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