Optical Compensators for Measurement of Elliptical Polarization

Jerrard, H.G.

doi:10.1364/josa.38.000035

Cited by 161 publications

(33 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Retardation was calculated from the intensity measurements with the compensator equations (Jerrard, 1948) as follows. The intensity through a single birefringent plate at 45°between crossed polars (i.e.…”

Section: Polarized-light Microscopymentioning

confidence: 99%

Regulation of Growth Anisotropy in Well-Watered and Water-Stressed Maize Roots. II. Role of Cortical Microtubules and Cellulose Microfibrils1

Baskin¹,

Meekes²,

Liang

et al. 1999

Plant Physiology

104

View full text Add to dashboard Cite

We tested the hypothesis that the degree of anisotropic expansion of plant tissues is controlled by the degree of alignment of cortical microtubules or cellulose microfibrils. Previously, for the primary root of maize (Zea mays L.), we quantified spatial profiles of expansion rate in length, radius, and circumference and the degree of growth anisotropy separately for the stele and cortex, as roots became thinner with time from germination or in response to low water potential (B.M. Liang, A.M. Dennings, R.E. Sharp, T.I. Baskin [1997] Plant Physiol 115:101-111). Here, for the same material, we quantified microtubule alignment with indirect immunofluorescence microscopy and microfibril alignment throughout the cell wall with polarized-light microscopy and from the innermost cell wall layer with electron microscopy. Throughout much of the growth zone, mean orientations of microtubules and microfibrils were transverse, consistent with their parallel alignment specifying the direction of maximal expansion rate (i.e. elongation). However, where microtubule alignment became helical, microfibrils often made helices of opposite handedness, showing that parallelism between these elements was not required for helical orientations. Finally, contrary to the hypothesis, the degree of growth anisotropy was not correlated with the degree of alignment of either microtubules or microfibrils. The mechanisms plants use to specify radial and tangential expansion rates remain uncharacterized.

show abstract

Section: Polarized-light Microscopymentioning

confidence: 99%

Regulation of Growth Anisotropy in Well-Watered and Water-Stressed Maize Roots. II. Role of Cortical Microtubules and Cellulose Microfibrils1

Baskin¹,

Meekes²,

Liang

et al. 1999

Plant Physiology

104

View full text Add to dashboard Cite

show abstract

“…Since the orthogonal electric field components travel at different velocities, the field components experience a phase shift relative to one another. The phase shift, ␦, can be represented by [5,7],…”

Section: Linear Birefringencementioning

confidence: 99%

Quantitative measurements of linear birefringence during heating of native collagen

1997

View full text Add to dashboard Cite

“…В поляризационных интерферометрах используются в основном ком-пенсаторы двух типов 73 : прямой компенсации и анализаторы азимута. Компенсаторы первого типа, например, компенсатор Бабине -Солейля, вносят дополнительную разность фаз между ортогональными свето-выми колебаниями.…”

Section: компенсационный методunclassified

“…В различных поляризационных компенсаторах, применяемых для анализа эллиптически-поляризованного света, используются различные приемы гашения света 73 . Наиболее высокая чувствительность достигается в тех компенсаторах, где эллиптически-поляризованный свет преобра-зуется в линейно поляризованный с направлением колебаний, характери-зующим разность фаз лучей, поляризованных во взаимно перпендику-лярных плоскостях.…”

unclassified

“…Самым распространенным компенсатором такого типа (анализатор азимута -по классификации Джеррарда 73 ) является компенсатор Сенар-мона. Он представляет собой λ/4-пластинку, установленную так, что глав-ные направления пластинки совпадают с полуосями эллипса исследуемого света.…”

unclassified

See 1 more Smart Citation