Active absorption of electromagnetic pulses in a cavity

HORSLEY, Simon, Robert FOSTER, Tomáš TYC and Thomas PHILBIN. Active absorption of electromagnetic pulses in a cavity. New Journal of Physics. Institute of Physics, 2015, vol. 17, MAY, p. "nestrankovano", 9 pp. ISSN 1367-2630. Available from: https://dx.doi.org/10.1088/1367-2630/17/5/053050.

Basic information

• Original name: Active absorption of electromagnetic pulses in a cavity
• Name in Czech: Aktivní absorpce elektromagnetických pulzů v dutině
• Authors: HORSLEY, Simon (826 United Kingdom of Great Britain and Northern Ireland), Robert FOSTER (826 United Kingdom of Great Britain and Northern Ireland), Tomáš TYC (203 Czech Republic, guarantor, belonging to the institution) and Thomas PHILBIN (372 Ireland).
• Edition: New Journal of Physics, Institute of Physics, 2015, 1367-2630.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10301 Atomic, molecular and chemical physics
• Country of publisher: United Kingdom of Great Britain and Northern Ireland
• Confidentiality degree: is not subject to a state or trade secret
• WWW: URL
• Impact factor: Impact factor: 3.570
• RIV identification code: RIV/00216224:14310/15:00081605
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1088/1367-2630/17/5/053050
• UT WoS: 000355283100001
• Keywords in English: pulse; absorption; source; drain; eigenmodes
• Tags: AKR, rivok

Abstract

We show that a pulse of electromagnetic radiation launched into a cavity can be completely absorbed into an infinitesimal region of space, provided one has a high degree of control over the current flowing through this region. We work out explicit examples of this effect in a cubic cavity and a cylindrical one, and experimentally demonstrate the effect in the microwave regime.

Links

• GBP201/12/G028, research and development project: Name: Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku

Investor: Czech Science Foundation