title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¿Ð¾Ð´Ð»Ð¾Ð¶ÐºÐ¸ Ð½Ð° ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ Ð¼Ð¸ÐºÑÐ¾Ð´Ð¸ÑÐºÐ¾Ð²ÑÑ Ð»Ð°Ð·ÐµÑÐ¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Study of the effect of the substrate on the electrical resistance of microdisk lasers
Creators: name: ÐÑÐ·ÑÐ¼Ð¸Ð½, ÐÑÑÐµÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: Ð¼Ð¸ÐºÑÐ¾Ð»Ð°Ð·ÐµÑ
Ð¼Ð¸ÐºÑÐ¾Ð´Ð¸ÑÐºÐ¾Ð²ÑÐ¹ ÑÐµÐ·Ð¾Ð½Ð°ÑÐ¾Ñ
ÑÐ»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¾Ðµ ÑÐ¾Ð¿ÑÐ¾ÑÐ¸Ð²Ð»ÐµÐ½Ð¸Ðµ
ÑÐ°ÑÑÐµÐºÐ°Ð½Ð¸Ðµ ÑÐ¾ÐºÐ°
ÑÑÑÐµÐºÑ ÑÐºÐ¾Ð¿Ð»ÐµÐ½Ð¸Ñ ÑÐ¾ÐºÐ°
microlaser
microdisk resonator
electrical resistance
current spreading
current crowding effect

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description: The object of research are microlasers of various radiuses and thicknesses of the conducting region with a resonator supporting the whispering gallery modes, with different geometries of contact arrangement with respect to the substrate (contact from above, contact from below). The aim of the theoretical part of the work is to create a model for calculating the resistance of a microcavity of various sizes with different arrangement of contacts and to study it. The purpose of the experimental part is to test the theoretical model of the resistance behavior in the case of contact below the substrate. The first part of the work is a review, which describes features of the object under study and arguments in favor of the prospects of its study. The second part describes the main effects that affects on microlaser resistance when changing the arrangement of the contacts. The final equations for calculating the resistance in microcavities are also derived. The third part is devoted to the theoretical analysis of the relations obtained in the second section and the experimental part of the work. As a result, the relations for calculating the microcavity resistances for different positions of the contacts were obtained. An experimental verification of the model was carried out the case of contact below the substrate. The formulas obtained can be used to optimize the parameters of microlasers.