Specifications

Publication year: 2013
Article number: 214007
Language: English
ISSN: 09574484
E-ISSN: 13616528
CODEN: NNOTER
Document type: Journal article (JA)
Publisher: Institute of Physics Publishing, Temple Circus, Temple Way, Bristol, BS1 6BE, United
Kingdom
Abstract: We present scalable large area terahertz (THz) emitters based on a nanoscale
multilayer InGaAs/InAlAs heterostructure and a microstructured electrode pattern. The emitters
are designed for pump lasers working at the telecommunication wavelength of 1.55 μm. Electric
THz fields of more than 2.5 V cm-1 are reached with moderate pump powers of 80 mW, the
corresponding spectrum extends up to 3 THz. The saturation characteristics have been
investigated for different pump laser spot sizes. For small pump powers of less than 50 mW the
emitted THz field is nearly independent of the spot size, for higher pump powers and small spot
sizes a clear saturation of the generated THz pulse can be observed. Hence the use of scalable
emitters is especially promising for high power fibre laser systems. The spectral content of the
generated radiation is nearly independent of the parameters spot size, pump power, and bias
voltage, which allows for stable operation in spectroscopic applications. © 2013 IOP Publishing
Ltd.
Number of references: 38
Main heading: Pumping (laser)
Controlled terms: Nanostructured materials - Nanotechnology
Uncontrolled terms: High power fibre laser - Microstructured electrodes - Nanoscale
multilayers - Photoconductive terahertz emitters - Saturation characteristic - Scalable
emitters - Spectroscopic application - Telecommunication wavelengths
Classification code: 744.1 Lasers, General - 761 Nanotechnology
DOI: 10.1088/0957-4484/24/21/214007
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
6.
Accession number: 20131916319333
Title: Microwave hydrothermal synthesis of anatanse nanotubes and their photocatalytic
performance
Authors: Niu, Jinfen1 ; Yao, Binghua1 ; Peng, Chao1 ; Zhang, Fanhong1/钮金芬;姚秉华;彭超;
张凡宏
Author affiliation: 1 School of Science, Xi'an University of Technology, Xi'an 710054, China
Corresponding author: Niu, J. ([e-mail])
Source title: Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Abbreviated source title: Kuei Suan Jen Hsueh Pao
Volume: 41
Issue: 1
Issue date: January 2013