TY - JOUR AU - Kawano, Yukio AU - Ishibashi, Koji PY - 2008 DA - 2008// TI - An on-chip near-field terahertz probe and detector T2 - Nature Photon JO - Nature Photonics SP - 618 EP - 621 VL - 2 IS - 10 KW - single molecule KW - terahertz KW - THz KW - near-field KW - microscopy KW - imaging KW - 2DEG KW - GaAs/AlGaAs KW - detector KW - applications AB - The advantageous properties of terahertz waves, such as their transmission through objects opaque to visible light, are attracting attention for imaging applications. A promising approach for achieving high spatial resolution is the use of near-field imaging. Although this method has been well established in the visible and microwave regions, it is challenging to perform in the terahertz region. In the terahertz techniques investigated to date, detectors have been located remotely from the probe, which degrades sensitivity, and the influence of far-field waves is unavoidable. Here we present a new integrated detection device for terahertz near-field imaging in which all the necessary detection components — an aperture, a probe and a terahertz detector — are integrated on one semiconductor chip, which is cryogenically cooled. This scheme allows highly sensitive, high-resolution detection of the evanescent field alone and promises new capabilities for high-resolution terahertz imaging. SN - 1749-4885 UR - http://www.nature.com/doifinder/10.1038/nphoton.2008.157 UR - https://doi.org/10.1038/nphoton.2008.157 DO - 10.1038/nphoton.2008.157 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=570), last updated on Fri, 20 Mar 2009 11:27:46 -0500 ID - Kawano+Ishibashi2008 ER -