نتایج جستجو برای: infrared device

تعداد نتایج: 773164  

A. H. Yuwono A. Ridhova A. Udhiarto N. Sofyan R. A. Nugraha

One of the possibilities to mass-produce dye-sensitized solar cell (DSSC) device is if it could be embedded to the area atop metal roof. However, the use of metal substrate is constrained by the corrosion caused by the electrolyte solution used in the DSSC device such as iodide/tri-iodide (I-/I3-). In this study, we propose the utilization of polyaniline/reduced graphene o...

2013
Yu-Hsiang Chen Ben Zhang Claire Tuna Yang Li Edward A. Lee Björn Hartmann

We introduce a novel method for selecting and controlling smart appliances in physical spaces through a head-worn computing device with near-eye display and wireless communication. We augment a commercial wearable computing device, Google Glass, with a narrow-beam IR emitter for this purpose. This configuration yields a usable beam width of 2 to 4 feet (60 to 120cm) for targeting at room scale....

2015
WONKYU KIM JUNPENG GUO JOSHUA HENDRICKSON

A metamaterial structure consisting of a one-dimensional metal/air-gap subwavelength grating is investigated for optical antireflection for a germanium surface in the infrared regime. For incident light polarized perpendicularly to the metal grating lines, the metamaterial exhibits effective dielectric properties, and the Fabry–Perot-like resonance results in the elimination of the reflection a...

Journal: :Journal of nanoscience and nanotechnology 2009
G L Zhao D Bagayoko L Yang

We studied the optical properties of aligned carbon nanotube mats for photonic device applications. We employed ab-initio density functional calculations in the linear combination of atomic orbital formalism. The calculated dielectric functions of the semiconducting carbon nanotube mats show a strong anisotropy when the electric field of the light is parallel or perpendicular to the tube axes. ...

2003
M. R. Clark D. M. McCann M. C. Forde

Within recent years there has been an increase in the use of NDT methods to detect defects and anomalies in various civil engineering structures. Infrared thermography, which has been successfully used in the USA in civil engineering applications, is being increasingly applied in the UK as an NDT technique. For example, the technique is now included in the Building Regulations for the assessmen...

2008
Lucas Teixeira Manuel E. Loaiza Alberto Barbosa Raposo Marcelo Gattass

This paper presents an algorithm for using projective invariant patterns in augmented reality applications. It is actually an adaptation of a previous algorithm for an optical tracking device, that works with infrared illumination and filtering. The present algorithm removes the necessity of working in a controlled environment, which would be inadequate for augmented reality applications. In or...

2017
Christian Ranacher Andreas Tortschanoff Cristina Consani Mohssen Moridi Thomas Grille Bernhard Jakoby

Sensing of gases is a promising area for applications of photonic systems operating in the mid-infrared spectral range. We present an infrared evanescent-field absorption gas sensor based on a silicon strip waveguide, which was specifically designed for CO2 sensing. We discuss finite element simulations that were used to design the strip waveguide and furthermore present experimental data of qu...

2012
Satoru Kaneko Takeshi Ito Kensuke Akiyama Manabu Yasui Chihiro Kato Satomi Tanaka Yasuo Hirabayashi Takeshi Ozawa Akira Matsuno Takashi Nire Hiroshi Funakubo Mamoru Yoshimoto

As application of re-activation of backside on power device Insulated Gate Bipolar Transistor (IGBT), laser annealing was employed to irradiate amorphous silicon substrate, and resistivities were measured using four point probe measurement. For annealing the amorphous silicon two lasers were used at wavelength of visible green (532 nm) together with Infrared (793 nm). While the green laser effi...

2014
I. Papagiannopoulos M. Kaluza G. De Mey V. Chatziathanasiou B. Wiecek A. Hatzopoulos

In this study, infrared thermography is used to measure the temperature response of integrated on silicon spiral inductors to a unit step electrical signal used to excite the samples. The measurements are performed with the use of high speed infrared equipment. The thermal impedance is then extracted from the transient temperature response. Finally, an attempt is made to model the thermal netwo...

2015
Cuiping Wang

A kind of hot spots detection alarm device and method is proposed in the paper about infrared thermal imaging, including the hardware design, algorithm, software realization. The hardware mainly includes the infrared thermal imaging camera and intelligent analysis board; the algorithm uses connected component detection method based on run length to extract target rectangle coordinates. This des...

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