Terahertz zone plates with integrated laser‐ablated bandpass filters

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...

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Veröffentlicht in:	Electronics letters 2013-01, Vol.49 (1), p.49-50
Hauptverfasser:	Minkevičius, L., Voisiat, B., Mekys, A., Venckevičius, R., Kašalynas, I., Seliuta, D., Valušis, G., Račiukaitis, G., Tamošiu¯nas, V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Filters, zone plates, and polarizers finite difference time‐domain analysis finite‐difference time‐domain simulations Fourier spectroscopy Fourier transform spectra Fundamental areas of phenomenology (including applications) integrated laser‐ablated bandpass filters integrated optics laser direct writing laser materials processing laser‐ablated zone plate Optical elements, devices, and systems optical fabrication optical filters optically pumped terahertz laser Optics Physics resonant filter areas submillimetre wave filters terahertz wave devices terahertz wave spectra terahertz zone plates zone plates
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Zusammenfassung:	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.
ISSN:	1350-911X 0013-5194 1350-911X
DOI:	10.1049/el.2012.3509