Publication Details:

Established in 2008

Journal or Publication Title:

Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես

Date of publication:

2018

Volume:

11

Number:

4

ISSN:

1829-1171

Official URL:

Corporate Creators:

Yerevan State University, Department of Radiophysics ; Yerevan State University, Information Systems Service and Development Department, Ijevan Branch, Ijevan, Armenia

Coverage:

223-226

Abstract:

The present paper deals on the investigation results of the detection of electromagnetic radiation in a glow discharge plasma of various gases. The voltage to the lamp is applied from a current source, providing a glow discharge in the lamp. It was shown that the detection efficiency depends strongly on the shape of the I-V characteristic of a gas-discharge lamp, as well as on the applied voltage (electric field). The different types of neon gas-discharge lamps were used as detectors. We also investigated the detection of a pulsed neodymium laser in air at an external electric field. Under the joint action of the laser pulse and the applied electric field, in the focusing region of the laser beam breakdown of air occurs. Thanks to the constant applied field, the created plasma behaves as a medium with a quadratic nonlinearity, which makes it possible to detect the electromagnetic radiation.

Date created:

2018-12-28

Format:

pdf

Identifier:

oai:arar.sci.am:23543

Location of original object:

ՀՀ ԳԱԱ Հիմնարար գիտական գրադարան