21–28 Jun 2026
Yerevan & Jermuk
Asia/Yerevan timezone

Control of Modulational Instability During Thin Film Deposition Using an Acoustoplasma Magnetron

Not scheduled
20m
Yerevan & Jermuk

Yerevan & Jermuk

IAPP NAS RA - Yerevan, Armenia

Speaker

Arthur Margaryan

Description

Acoustoplasma magnetrons (APMs) represent a unique class of devices designed for the precision control of plasma processes. Unlike classical systems, APMs combine the properties of magnetron and glow discharges, allowing them to be utilized across a wide spectrum of applications. One of the most promising areas for APM application is the deposition of thin films.
A distinctive feature of the APM is the ability to control the influence of modulational instability. By adjusting discharge parameters—such as buffer gas pressure, current, voltage, and system geometry—it is possible to modify the perturbation spectrum and the degree of its amplification. This allows for either the suppression of modulational instability to achieve maximum coating uniformity or, conversely, its utilization for the formation of structured materials, specifically porous and gradient structures.
This capability transforms the APM into a technological tool that enables the management of material properties at the micro- and nano-levels. The ability to perform deposition and selective etching processes within a single technological cycle facilitates the production of smooth and dense films, making this methodology indispensable for creating components in modern micro- and optoelectronics.

Authors

Aleksan Abrahamyan (I) Artak Mkrtchyan Arthur Margaryan Ruben Chilingaryan (Institute of Applied Problems of Physics (IAPP) NAS RA)

Presentation materials