Skip to search formSkip to main contentSkip to account menu

Numerical aperture

Known as: Numerical aperture (microscopy), Numerical aperture (optical fiber), Na 
In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system… 
Wikipedia (opens in a new tab)

Related topics

Related topics

21 relations
Atomic-force microscopyBlu-rayCladding (fiber optics)Computational lithography

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
Highly Cited
2008
Highly Cited
2008
Pomiary oświetleniowe we wnętrzach : Nowe podejście w projektowaniu i weryfikacji oświetlenia na tle normy PN-EN 12464-1:2004 Światło i oświetlenie. Oświetlenie miejsc pracy. Cz. 1: Miejsca pracy we…
Highly Cited
2006
Highly Cited
2006
Combining Efforts for Improving Automatic Classification of Emotional User States
Classification performance of emotional user states found in realistic, spontaneous speech is not very high, compared to the… 
Highly Cited
2006
Highly Cited
2006
Zalety i wady współspalania biomasy w kotłach energetycznych na tle doświadczeń eksploatacyjnych pierwszego roku współspalania biomasy na skalę przemysłową
Highly Cited
2002
Highly Cited
2002
Luka konkurencyjna na poziomie przedsiębiorstwa a przystąpienie Polski do Unii Europejskiej
Highly Cited
1996
Highly Cited
1996
Effect of Electrofishing Pulse Shape and Electrofishing-Induced Spinal Injury on Long-Term Growth and Survival of Wild Rainbow Trout
Abstract High rates of spinal injury from electrofishing have been reported for rainbow trout Oncorhynchus mykiss, but little is… 
Highly Cited
1985
Highly Cited
1985
Adrenalin-induced Na+/H+ exchange in trout erythrocytes and its effects upon oxygen-carrying capacity
Addition of adrenalin (10 −4 moll −1 ) to trout erythrocytes in an unbuffered saline resulted in a rapid acidification of the… 
Highly Cited
1981
Highly Cited
1981
Reaction time, evoked brain potentials, and psychometric g in the severely retarded
Review
1976
Review
1976
Analytical precision of one-sixth order semiquantitative spectrographic analysis
Over 2,700 separate analyses were made on 22 different geologic samples selected to cover wide concentration ranges for the 30… 
Highly Cited
1975
Highly Cited
1975
Patterns of basidiomycete nutrient accumulation in conifer and deciduous forest litter
Highly Cited
1962
Highly Cited
1962
Capitalismo e escravidão no Brasil meridional : o negro na sociedade escravocrata do Rio Grande do Sul
By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy Policy (opens in a new tab), Terms of Service (opens in a new tab), and Dataset License (opens in a new tab)