2015
DOI: 10.1016/j.optcom.2014.10.037
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Comparison of electromagnetic and scalar methods for evaluation of efficiency of diffractive lenses for wide spectral bandwidth

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Cited by 32 publications
(21 citation statements)
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“…Various aspects of this task were presented, in particular, in the works [117][118][119]. The results obtained allowed us to define the conditions under which the high image quality (and, in particular, the lack of a halo) can be achieved using the elements in an optical system with single-layer or double-layer relief-phase microstructure.…”
Section: Resultsmentioning
confidence: 99%
“…Various aspects of this task were presented, in particular, in the works [117][118][119]. The results obtained allowed us to define the conditions under which the high image quality (and, in particular, the lack of a halo) can be achieved using the elements in an optical system with single-layer or double-layer relief-phase microstructure.…”
Section: Resultsmentioning
confidence: 99%
“…We have taken into account that when evaluating by the RCWA method, the modulus of the negative angle of incidence on the microstructure |ψ N | and the positive angle of incidence ψ P (see Figure 1a) lead to the same decrease in DE. Therefore, we used the smallest corners of |ψ N | and ψ P as the maximum allowable angle, Ψ, as suggested in [15,16].…”
Section: Methodsmentioning
confidence: 99%
“…Изменяются лишь номера дифракционных порядков, т. е. если η = 1 при нулевом угле падения излучения (θ = 0) наблюдалось на какой-то длине волны λ в k ′ порядке, то при угле θ > 0 η = 1 (на примерно той же длине волны) передвинется на порядок k ′′ > k ′ . Однако следует учесть, что реальная ДЭ, которую позволяет достоверно прогнозировать лишь строгая теория дифракции, суще-ственно зависит от отношения периода микроструктуры к глубине рельефа (например, [6]), и рост глубины с увеличением порядка гармоничности может привести к ощутимому падению ДЭ, особенно при больших углах падения излучения на микроструктуру.…”
Section: дифракционная эффективность гармонической киноформной линзыunclassified