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Nikolay V. Kolotinskiy

Publications and source records attributed to Nikolay V. Kolotinskiy.

2 recordsLinked to original sources
arXiv2025

Superconducting Electronic Device Response Linearity Calculation Method Using Discrete Fourier Analysis

A highly effective method of the device linearity calculation on the stage of the device development is worked out and reported. The method allows expressing the linearity in terms of the achievable spurious-free dynamic range (SFDR) of the created devices, in particular superconductive electronic devices, and therefore can be easy correlated with the obtained experimental data. The algorithm scheme and the method accuracy are considered and discussed in detail.

cond-mat.supr-con↗
arXiv2025

Obstacles to two-line Josephson traveling wave parametric amplifier

Obstacles to the two-line Josephson traveling wave parametric amplifier (JTWPA) designs, aimed at increasing the allowed pump wave energy and, hence, the gain growth through the combination of linear and nonlinear lines as pump and signal lines is discussed. This analysis takes into account both the mutual coupling and the discreteness of the artificial waveguide lines. Significant restrictions arise from the cyclical transfer of the traveling wave's energy from one line to the other one with phase step by $π$ every beat cycle. Moreover, the other restrictions result from the phase mismatch between the pump, signal and idler waves due to both the coupling and the discreteness of the artificial lines.

cond-mat.supr-con↗