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Conventional scanning method for photoelectric devices is slow and ineffective, especially in large scale applications. Motivated by the fact that the failed or defected components are sparse, this paper proposed a fast scanning method utilizing compressive sensing. The proposed method measures the total output of the sample device under pattern controlled structured light beams. With a few numbers of photo-electric current measurements, the defected components are located in the compressive sensing manner. The concept of propose method and the detection probabilities of the proposed method are evaluated. Simulation results indicating that the sparse defects can be compressively located using a few measurements, and the detection speed can be accelerated by 10 times when the ratio of defects is less than 1.5%; this detection probability is sufficient for real application. The additional advantages of proposed detection system are that no mechanical movement component is required, and the testing for each single cell is no longer required, since the system measures the total output of the whole panel. This feature brings great benefits to the applications for testing the devices that have been assembled or installed.

Polarized patterns in the cosmic microwave background (CMB) radiation contains rich knowledge for early stage of the universe. In particular their odd-parity patterns at large angular scale (> 1°), primordial B-modes, are smoking-gun evidence for the cosmic inflation. The GroundBIRD experiment aims to detect these B-modes with a ground-based apparatus that includes several novel devices: a high-speed rotational scan system, cold optics, and microwave kinetic inductance detectors (MKIDs). We plan to start observations in the Canary Islands in 2017. In this paper, we present the status of the development of our instruments. We established an environment that allows operation of our MKIDs in an optical configuration, in which the MKIDs observe radiations from the outside of the telescope aperture. We have also constructed MKID prototypes, and we are testing them in the optical configuration.

Essentially, 3D computed tomography (CT) image should be obtained from huge data (raysum) set from multiple views and multiple projections. Due to mechanical limitation, a compromise between fast scanning process and quick data sampling has to be considered. This paper presents our approach on performing the fast scanning process and quick data sampling in order to obtained good CT image with acceptable criteria. A set of nice results were presented.

The Nanoscopium 155 m-long scanning nanoprobe beamline of Synchrotron Soleil (St Aubin, France) is dedicated to quantitative multi-modal imaging. Dedicated experimental stations, working in consecutive operation mode, will provide coherent scatter imaging and spectro-microscopy techniques in the 5-20 keV energy range for various user communities. Next to fast scanning, cryogenic cooling will reduce the radiation damage of sensitive samples during the measurements. Nanoscopium is in the construction phase, the first user experiments are expected in 2014. The main characteristics of the beamline and an overview of its status are given in this contribution.

An enhanced measurement system for terahertz pulsed imaging is presented that is capable of effectively performing en-face and three-dimensional scans of planar and curved surfaces. The bending of the scanning surface in one direction is compensated by synchronously advancing the mechanical delay time with the deflection of a scanning mirror. The second scanning mirror for the fast scanning direction forms a telecentric system and does not exhibit phase distortion.

There has been considerable interest in the use of the Submillimeter/THz (SMM/THz) spectral region for gas analysis and detection. This has been driven both by the importance of the application and the THz-TDS community. In this paper we will discuss and compare the attributes of an attractive alternative: cw submillimeter spectroscopy. Particular attention will be paid to sensitivity, specificity, and the investigations of harsh environments. A particularly simple system approach, the FAst Scan Submillimeter Spectroscopy Technique (FASSST), will be discussed and a compact and potentially very low cost implementation described. Results will be presented which include the analyses of complex mixtures of gases with absolute specificity.

We have developed a novel confocal microscopy system, which can perform both axial and lateral scanning at an ultra high speed. A rotary mirror array (RMA) consists of 36 small mirrors deployed on the surface of a round plate with a small tilting angle and a discrete rotational symmetry. When the RMA rotates at a constant speed, the focal point is scanned inside a sample periodically and linearly. We have demonstrated a scanning rate of 2400 lines per second, which can be readily improved to more than 20000 lines per second. Our scheme can also be used in a fast scanning multi-photon microscope.

We propose and experimentally demonstrate a fluorescent imaging technique for surface quality control of wet-cleaned silicon wafers. This simple technique allows macro- and microscopic imaging. Submicron resolution and fast scanning are successfully demonstrated. Distribution of water stains is measured using this novel technique and correlated to the surface structure.

The continuing demand for non-invasive tools for use in clinical diagnosis has created the need for flexible and innovative optical systems which satisfy current requirements. We report the development of a microspectrophotometer system for use on mitochondrial respiratory pigments. This novel optical fiber set-up uses visible spectrophotometry to monitor the reduction of mitochondrial electron carriers. Preliminary data is presented for the reduction of cytochrome-c by two methods. In the first, cytochrome-c was reduced in isolation using sodium dithionite. The second was an in-vivo simulation of the reduction of cytochrome-c using the mitochondrial extract from rat liver. The key features of the system are; front end adaptability, high sensitivity and fast scanning capabilities which are essential for the rapid biological reactions which are observed.

Millimeter-wave concealed weapon detection, based on the use of a fast scan short-range FMCW 94 GHz radar, was evaluated in a small business innovative research phase I under the Technology Reinvestment Project (TRP) program. The feasibility of a fast circular scan technique invented by Chang Industry has been firmly established, with handgun images recorded. This fast scan technique is essential both for remote sensing and full-body fixed site scanner applications. Although only raw image data was obtained in Phase I, we propose to apply super-resolution image enhancements and target recognition software algorithms to provide more reliable detection. Endorsement from the Los Angeles County Sheriff's Department, to provide operational input and testing and evaluation, and the hiring of a consultant to plan for future program financing (including venture capital investment) make the project very attractive for commercialization.

Several techniques have been proposed for rapidly acquiring the Fourier domain data required for magnetic resonance (MR) imaging. These fast-scan techniques sample data on nonuniform grids in the Fourier space of the object. This work explores the image reconstruction errors that occur when images are reconstructed as if the data were measured on the ideal uniform grids. It is also shown how interpolation can be used to correct these reconstruction errors and produce images of acceptable image quality.

As in all fields of NDT,continuous developments and improvements in equipment reveal new techniques of inspection. This is particulary true in the case of thermography with the introdution for civil use of scanning infra-red cameras or contact thermography systems with combines fast scanning speeds with good spatial and thermal resolution. In combination with suitable sources such systems can be readily used to monitor transient thermal diffusion effects in solids. The object of this paper is to describe todays application techniques of thermography in the non destructive testing field. The paper shows experiences of Florin & Scherler AG, a institute, which only is working in thermal mapping.