A metamaterial-based approach in making a wide-angle absorber of infrared radiation is described. The technique is based on an anisotropic perfectly impedance-matched negative-index material PIMNIM . It is shown analytically that a PIMNIM that is subwavelength in all three dimensions enables absorption close to 100% for incidence angles up to 45° to the normal. A specific implementation of such...

1521 THE DIAGNOSIS OF SLEEP APNEA TYPICALLY INVOLVES AN OVERNIGHT POLYSOMNOGRAM WITH CONTINUOUS MONITORING OF SEVERAL PHYSIOLOGIC parameters and surrogate measures of airflow (nasal pressure [Pn], oronasal thermistor, expired CO2 waveform [PECO2]) using contact sensors. 1-5 A subject can come in contact with at least 20 such sensors during a study. These sensors and the wires can influence not ...

PILOT (the Pathfinder for an International Large Optical Telescope) is a proposed Australian/European optical/infrared telescope for Dome C on the Antarctic Plateau, with target first light in 2012. The proposed telescope is 2.4m diameter, with overall focal ratio f/10, and a 1 degree field-of-view. In median seeing conditions, it delivers 0.3" FWHM widefield image quality, from 0.7-2.5 microns...

Thermography, or thermal visualization is a type of infrared visualization. Thermographic cameras are used in many heavy factories like metal recycling factories, wafer production factories and etc for monitoring the temperature conditions of the machines. Besides, thermographic camera can be used to detect trespassers in environment with poor lighting condition, whereby, the conventional digit...

Multifunctional nanoparticles possessing magnetization and near-infrared (NIR) absorption have warranted interest due to their significant applications in magnetic resonance imaging, diagnosis, bioseparation, target delivery, and NIR photothermal ablation. Herein, the site-selective assembly of magnetic nanoparticles onto the ends or ends and sides of gold nanorods with different aspect ratios ...

Digital Infrared Thermal Imaging, Thermal Imaging or Thermography, could be the next chapter in safer, more effective screening for cancer, sport injuries including orthopedic issues and more. Unfortunately, thermal image camera resolution is considerably lower than of optical cameras, mostly only 160x120 or 320x240 pixels. The readout durability was still poor and needed improvement. In this p...

Emory Cave in west Texas, USA is one of the few natural roost sites used by the endangered Mexican long-nosed bat Leptonycteris nivalis in the United States. Despite concern over declines in population size, no reliable methods have been developed for censusing colonies of this species that are both accurate and minimize disruption to the colony. The objective of this study was to use non-invas...

We have developed a novel method for non-contact measurement of breathing function. The method is based on statistical modeling of dynamic thermal data captured through a highly sensitive infrared imaging system. The air that is breathed out has higher temperature than the typical background of indoor environments (e.g., walls). Therefore, the particles of the expired air emit at a higher power...

We report on a thermal imaging technique based on fluorescence polarization anisotropy measurements, which enables mapping the local temperature near nanometer-sized heat sources with 300 nm spatial resolution and a typical accuracy of 0.1 degrees C. The principle is demonstrated by mapping the temperature landscape around plasmonic nano-structures heated by near-infrared light. By assessing di...