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EETE JULAUG 2012

NEWS & TECHNOLOGY INNOVATION CLUSTER A peek at innovation from Minalogic By Julien Happich Created in 2005 to become a global competi- line sources, multi-line absorption, or tive cluster in the Grenoble region (France), can be used in laser spectroscopy with Minalogic - www.minalogic.org - gathers over one or more laser sources for materi- 200 members all benefiting from the cluster’s als’ analysis. In his research, Le Coarer collaborative projects in the field of micro- presented several papers on the use of technology and embedded software. EETimes gold nanowires to probe a Lippmann Europe was invited to take a peek at some of the interferogram within a waveguide, ef- cluster’s recent projects, mature enough to find fectively relying on near-field detection to commercial applications. sample the evanescent standing wave in Among several demos set up for the day, the waveguide. The researcher was able CyXplus was exhibiting its breakthrough X-ray to demonstrate that small gold wires Fig. 1: CyXplus offers production- tomography solution, developed as part of deposited along the waveguide surface line capable 3D X-ray tomography Minalogic’s Delpix project. CyXplus was spun off can both scatter the light and sample the the Cybernetix Group in 2009 and as its technical for production part inspection and interferogram, allowing its detection by a director Olivier François explained us, it is only numerical archiving. simple CCD sensor. In 2007, the proof of through the combination of faster X-ray sensors, concept was obtained with a waveguide custom data transfer protocols and improved about 0.5mm long. In further research image reconstruction algorithms that the com- not made public, the aim was to replace pany was able to deliver production-line capable the gold nanowires with specially 3d-imaging. designed detectors set every quarter of The company uses new software and a special the standing wavelength to enlarge the data transfer protocol to yield a synchronized, spectral bandwidth of the fully inte- real-time 3d image reconstruction as the X-ray grated spectrometer. Resolution Spectra scans are being acquired, effectively transferring Systems now has two products on offer data directly for volume reconstruction, cross- (shown in figure 2), the linear Zoom section by cross-section with no data storage Spectra and the rectangular shaped Ma- delays. With this approach, CyXplus claims a 20x Fig. 2: A SWIFT unit, the 30mm-long Zoom trix Zoom. The Zoom Spectra uses the speed improvement over previous generation 3D Spectra waveguide and the rectangular same demonstrated FTS principle but on X-ray scanners. This means that a production shaped Matrix Zoom spectrometer from a 30mm-long waveguide, whereas the part that would take several minutes to inspect Resolution Spectra Systems. rectangular shaped Matrix Zoom com- can now be fully reconstructed and analysed bines 256 Zoom Spectra waveguides in only a few seconds. “In the past, because it was taking too cleverly arranged side by side to augment the spectrometer’s long to reconstruct the object in 3D, manufacturers would only overall spectral bandwidth. Such micro-spectrometers could find use X-ray tomography to characterize and validate a production use in space-borne spectrometry, chemical sensors and parallel process, based on one successful part. Now, each part on the spectral imaging to name a few applications. production line can be scanned and fully inspected internally, Intriguing transparent sapphire wafers were on display at the with automated quality inspection and defect detection” com- Arnano booth. Directly inspired by the microform process, each mented François. “This also means that a complete 3D digital 200mm wafer can store up to 10,000 pages of A4 documents, proof of every produced part can be kept for future reference. In micro-etched from a layer of titanium nitride (TiN) cast between case of insurance claims, a manufacturer could prove that a part two atomically sealed plates of synthetic sapphire. So why would was shipped defect-free” he added. The 3D image resolution is in you convert your digital data into analogue frames physically the 0.1mm range. etched onto an optical substrate? For durability and reliability, Delivering a spectrum analysis with a resolution of 10pm over a wide portion of the visible and NIR range, from 630 to 1100nm, Resolution Spectra Systems claims that its SWIFTS (Stationary Wave Integrated Fourier Transform Spectrometer) is 100 times more powerful than existing mini-spectrometers and 2,000 times smaller than high-end spectrometers or mono- chromators offering a similar level of performance. Combining integrated optics, nanotechnology, micro- electronics and embedded software, the new instru- ment is described by Etienne Le Coarer, technical director of the Institute of Planetology and Astro- Fig. 3: Under the project Nanoform, Arnano’ high density analog storage physics of Grenoble (IPAG), as an ultra-compact consists of 200mm atomically sealed glass or sapphire wafers enclosing static Fourier Transform Spectrometer (FTS) that can micro-etched data. The Nanoviewer optical scanner eases data retrieval in a operate over a wide wavelength range. The SWIFTS is capable of measuring wideband spectra or multi- numerical format. 6 Electronic Engineering Times Europe July/August 2012 www.electronics-eetimes.com


EETE JULAUG 2012
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