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You searched on: Topic Area: Optical Metrology Sorted by: title

Displaying records 21 to 30 of 48 records.
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21. Iron Optical Constants and Reflectance Spectroscopy of Planetary Surfacers
Topic: Optical Metrology
Published: 3/1/2010
Authors: David Blewett, Nhan V Nguyen, Oleg A Kirillov, Samuel Lawrence

22. Low-Cost, High-Throughput, Automated Counting of Bacterial Colonies
Topic: Optical Metrology
Published: 1/5/2010
Authors: Matthew Lawrence Clarke, Robert L Burton, A. Nayo Hill, Maritoni Abatayo Litorja, Moon H. Nahm, Jeeseong Hwang
Abstract: Research involving bacterial pathogens often requires enumeration of bacteria colonies. Here we present a low-cost, high-throughput colony counting system consisting of colony counting software and a consumer-grade digital camera or document scanner ...

23. Lunar Spectral Irradiance and radiance (LUSI): new instrumentation to characterize the Moon as a space-based radiometric standard
Series: Journal of Research (NIST JRES)
Report Number: 117.011
Topic: Optical Metrology
Published: 7/17/2012
Authors: Allan W. Smith, Steven Ray Lorentz, Raju Vsnu Datla, Thomas C. Stone
Abstract: The need to understand and monitor climate change has led to proposed radiometric accuracy requirements for space-based remote-sensing instruments that are very stringent and currently beyond the reach of many Earth orbiting instruments. A major ...

24. Measuring Single-Walled Carbon Nanotube Length Distributions from Diffusional Trajectories
Topic: Optical Metrology
Published: 8/27/2012
Authors: Jason Streit, Sergei M Bachilo, Anton V Naumov, Constantine Y. Khripin, Ming Zheng, R Bruce Weisman
Abstract: A new method is demonstrated for measuring the length distributions of dispersed single-walled carbon nanotube (SWCNT) samples by analyzing diffusional motions of many individual nanotubes in parallel. In this method, termed Length Analysis by Na ...

25. Metrologia
Topic: Optical Metrology
Published: 7/8/2011
Authors: Uwe Arp, Zhigang Li, Ping-Shine Shaw, Mathias Richter, Roman Klein, Wolfgang Paustian, Reiner Thornagel
Abstract: We report on a successful bilateral inter-comparison between the Physikalisch-Technische Bundesanstalt (PTB) and the National Institute of Standards and Technology (NIST). In both laboratories deuterium lamps were calibrated using the calculability o ...

26. Microwave generation with low residual phase noise from a femtosecond fiber laser with an intracavity electro-optic modulator
Topic: Optical Metrology
Published: 11/14/2011
Authors: William C Swann, Esther Baumann, Fabrizio Raphael Giorgetta, Nathan Reynolds Newbury
Abstract: Low phase-noise microwave generation has previously been demonstrated using self-referenced frequency combs to divide down a low noise optical reference. We demonstrate an approach based on a fs Er-fiber laser that avoids the complexity of self-refer ...

27. Monitoring Photothermally Excited Nanoparticles via Multimodal Microscopy
Topic: Optical Metrology
Published: 5/19/2010
Authors: Matthew Lawrence Clarke, Shin G. Chou, Jeeseong Hwang
Abstract: Generation of heat using optically excited nanoparticles can be beneficial or detrimental depending on the application. Therefore, clinically applicable studies are being pursued in an effort to achieve safe practices of nanoparticle-induced hyperth ...

28. Mueller matrix ellipsometry of artificial non-periodic line edge roughness in presence of finite numerical aperture
Topic: Optical Metrology
Published: 4/20/2011
Authors: Thomas Avery Germer, Martin Foldyna, Brent Bergner
Abstract: We used azimuthally-resolved spectroscopic Mueller matrix ellipsometry to study a periodic silicon line structure with and without artificially-generated line edge roughness (LER). The unperturbed, reference grating profile was determined from multip ...

29. Multiple-order Imaging for Optical Critical Dimension Metrology using Microscope Characterization
Topic: Optical Metrology
Published: 10/11/2012
Authors: Jing Qin, Hui H. Zhou, Bryan M Barnes, Francois R. Goasmat, Ronald G Dixson, Richard M Silver
Abstract: There has been much recent work in developing advanced optical metrology applications that use imaging optics for optical critical dimension (OCD) measurements, defect detection, and for potential use with in-die metrology applications. We have previ ...

30. Nanometrology Using Through-Focus Scanning Optical Microscopy Method
Topic: Optical Metrology
Published: 12/21/2011
Authors: Ravikiran Attota, Richard M Silver
Abstract: We present an initial review of a novel through-focus scanning optical microscopy (TSOM) imaging method that produces nanometer dimensional measurement sensitivity using a conventional bright-field optical microscope. In the TSOM method a target is ...

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