Terahertz zone plates with integrated laser-ablated bandpass filters

Author

MinkevicÌŒius, L. ; Voisiat, B. ; Mekys, A. ; VenckevicÌŒius, R. ; KasÌŒalynas, I. ; Seliuta, Dalius ; ValusÌŒis, G. ; RacÌŒiukaitis, G. ; TamosÌŒiuÌŒnas, V.

Author_Institution

Center for Phys. Sci. & Technol., Vilnius, Lithuania

Volume

49

Issue

1

fYear

2013

fDate

January 3 2013

Firstpage

49

Lastpage

50

Abstract

Properties of zone plates with integrated bandpass filters were simulated numerically and demonstrated experimentally for 0.76 THz frequency. Finite-difference time-domain simulations were used to predict properties of a conventional zone plate and laser-ablated zone plate with resonant filter areas. Zone plates were produced employing laser direct writing and characterised by Fourier spectroscopy and an optically pumped terahertz laser.

Keywords

Fourier transform spectroscopy; band-pass filters; finite difference time-domain analysis; laser ablation; resonator filters; zone plates; Fourier spectroscopy; conventional zone plate; finite-difference time-domain simulation; frequency 0.76 THz; laser direct writing; laser-ablated bandpass filter; laser-ablated zone plate; optically pumped terahertz laser; resonant filter area; terahertz zone plate;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2012.3509

Filename

6415442