The frequency-doubling electro-optic modulation method for Kerr-effect measurements: Application in nitrobenzene

Theophanous, N.; Ahmed, Marwan Abdou; Alexakis, G.

doi:10.1007/bf02028180

Cited by 11 publications

(2 citation statements)

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“…The accuracy of the traditional measurement method, based on the Sénarmont system [ 4 , 5 , 20 , 21 , 22 ], is limited both by the use of a simplified mathematical model of the measurement system and by the measurement procedure, which uses only one specific operating point on the transmission characteristic. If this is the maximum linearity point, then the traditional method is highly sensitive.…”

Section: Resultsmentioning

confidence: 99%

“…The Sénarmont-type system is a common choice for many measurements of the linear electro-optic effect. In contrast, there are very few reports on measurements of the quadratic effect using maximum linearity conditions [ 20 ] or the FDEOM method [ 21 , 22 ]. To the best knowledge of the author, there are no reports in the literature on the separation of the quadratic electro-optic effect from the linear electro-optic effect and other unintended phenomena.…”

Section: Methodsmentioning

confidence: 99%

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Precise Measurements of the Quadratic Electro-Optic Effect in KH2PO4 Crystals Using a Sénarmont-Type System

Izdebski

2021

Materials

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This paper presents precise measurements of the temperature dependencies of the quadratic electro-optic coefficients g1111−g1122 and ne3g3333−no3g1133 in KH2PO4 crystals. In addition to traditional electro-optic coefficients describing changes in the function of an applied electric field, intrinsic coefficients, defined in terms of induced polarization, are also considered. Both intrinsic coefficients decrease with increases in temperature, but the relative temperature changes are of different orders of magnitude: 10−4 and 10−3 K−1. A Sénarmont-type setup was used for the electro-optic measurements. To achieve the best accuracy, a new approach was developed, in which, instead of using only one specific point on the modulator’s transmission characteristic, the operating point is changed during the measurements.

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