The effects of longitudinal spatial coherence of light in interference experiments

Ryabukho, Vladimir P.; Lyakin, D. V.

doi:10.1134/1.1870071

Cited by 20 publications

(14 citation statements)

References 15 publications

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“…For frequency-domain FF-OCT operation [91], tunable sources and fs sources that can reveal the spectral interference images in a short time will be helpful.Finally, it should be mentioned that spatial coherence effects in other related fields such as interferometry in general, holography, surface profiling and other applications has been an active field of research during the last two decades [92][93][94][95][96][97]. The group at Saratov University has been studying longitudinal spatial coherence extensively [98][99][100][101] …”

Section: Conclusion and Future Trendsmentioning

confidence: 99%

Spatial and temporal coherence effects in interference microscopy and full‐field optical coherence tomography

Abdulhalim

2012

Annalen der Physik

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Low‐coherence optical microscopy or optical coherence microscopy uses light with short coherence length. The well‐known case is: “white‐light interferometry”, which became recently more known as: “optical coherence tomography”. However, when lenses and microscope objectives are used to create interferometric images, in what is known classically as “interference microscopy” or today as “full‐field optical coherence tomography” the spatial coherence starts to play a critical role. In this article the coherence effects in low‐coherence optical microscopy are reviewed. As this technology is becoming increasingly publicized due to its importance in three‐dimensional imaging, particularly of scattering biological media and optical metrology, the understanding of the fundamental physics behind it is essential. The interplay between longitudinal spatial coherence and temporal coherence and the effects associated with them are discussed in detail particularly when high numerical apertures are used. An important conclusion of this study is that a high‐contrast, high‐resolution system for imaging of multilayered samples is the one that uses narrowband illumination and high‐NA objectives with an index‐matching fluid. Such a system, when combined with frequency‐domain operation, can reveal nearly real‐time three‐dimensional images, and is thus competitive with confocal microscopy.

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Section: Conclusion and Future Trendsmentioning

confidence: 99%

Spatial and temporal coherence effects in interference microscopy and full‐field optical coherence tomography

Abdulhalim

2012

Annalen der Physik

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“…Eq. (19) has certain similarity to equations obtained in Ref. [13], but there is a difference in the phases.…”

Section: Analysis Of An Interference Microscope Signalmentioning

confidence: 56%

“…For the Michelson interferometer this difference in refractive index manifestation for the angular and temporal spectra has been theoretically and experimentally investigated in Ref. [19][20][21]. The condition (22b) is similar to the one obtained in Ref.…”

Section: Location Of the Interference Pulsesmentioning

confidence: 62%

Theoretical analysis of stratified media imaging in low-coherence interference microscopy

Grebenyuk

Ryabukho

2012

SPIE Proceedings

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Theoretical analysis of stratified media imaging with a Linnik-type low-coherence interference microscope is presented. Expressions describing the interference microscope image formation in the case of arbitrary coherence properties of illumination are derived. The particular case of spatially incoherent illumination is further analyzed and the effects of numerical aperture size and spectral properties of illumination are shown. The derived theory can be useful for determination of optimal parameters of the interference microscope system for the object fine structure visualization. The theory can also be applied for analysis of other types of interference microscopes.

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“…Однако длина L c продольной когерентности оптиче-ского волнового поля, как показано в [25][26][27][28][29][30]33,34], при определенных условиях, определяемых соотношением параметров частотного и углового спектров, может огра-ничиваться не шириной частотного спектра поля ω, а шириной его углового спектра 2θ:…”

Section: трехмерная область пространственной когерентностиunclassified

“…В работах [20][21][22][23][24][25][26][27][28][29][30][31][32] теоретически и экспериментально установлено, что длина продольной когерентности вол-нового поля может ограничиваться не только шириной его частотного спектра, но и шириной его углового спектра или совместно и шириной частотного, и шири-ной углового спектров поля [33,34]. Более того, длина поперечной когерентности также оказывается зависимой от ширины частотного спектра при достаточно большой его ширине [34,35].…”

Section: Introductionunclassified

Объем Когерентности Оптического Волнового Поля С Широкими Частотным И Угловым Спектрами

Лякин¹,

Мысина²,

Рябухо³

2018

Журнал Технической Физики

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The effects of longitudinal spatial coherence of light in interference experiments

Cited by 20 publications

References 15 publications

Spatial and temporal coherence effects in interference microscopy and full‐field optical coherence tomography

Spatial and temporal coherence effects in interference microscopy and full‐field optical coherence tomography

Theoretical analysis of stratified media imaging in low-coherence interference microscopy

Объем Когерентности Оптического Волнового Поля С Широкими Частотным И Угловым Спектрами

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