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

Displaying records 31 to 40 of 67 records.
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31. Nanoscale Specific Heat Capacity Measurements Using Optoelectronic Bilayer Microcantilevers
Topic: Optical Metrology
Published: 12/12/2012
Authors: Brian G. (Brian Gregory) Burke, William A Osborn, Richard Swift Gates, David A LaVan
Abstract: We describe a new technique for optically and electrically detecting and heating bilayer microcantilevers (Pt−SiNx) to high temperatures at fast heating rates for nanoscale specific heat capacity measurements. The bilayer microcantilever acts s ...

32. Weak value thermostat with 0.2 mK precision
Topic: Optical Metrology
Published: 12/1/2012
Authors: Patrick F Egan, Jack A Stone Jr.
Abstract: A new laser-based thermostat sensitive to 0.2 mK at room temperature is reported. The method utilizes a fluid-filled prism and interferometric weak value amplification to sense nanoradian deviations of a laser beam: due to the high thermooptic coef ...

33. Multiple-order Imaging for Optical Critical Dimension Metrology using Microscope Characterization
Topic: Optical Metrology
Published: 10/11/2012
Authors: Jing Qin, Hui 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 ...

34. 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 ...

35. A compact and robust method for full Stokes spectropolarimetry
Topic: Optical Metrology
Published: 8/1/2012
Authors: William Sparks, Thomas Avery Germer, John MacKenty, Frans Snik
Abstract: We present an approach to spectropolarimetry which requires neither moving parts nor time dependent modulation, and which o ers the prospect of achieving high sensitivity. The concept, which is one of those generically known as channeled polarimetry, ...

36. 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 ...

37. Infrared detector calibrations
Topic: Optical Metrology
Published: 3/22/2012
Authors: George P Eppeldauer, Vyacheslav B Podobedov
Abstract: An InSb working standard radiometer, first calibrated at NIST in 1999 against a cryogenic bolometer, was recently calibrated against a newly developed low-NEP pyroelectric transfer standard detector. The pyroelectric transfer standard, which can oper ...

38. 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 ...

39. 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 ...

40. THz Spectroscopic Study of Iron Oxide Layers within Steel-Reinforced Structural Components
Topic: Optical Metrology
Published: 9/26/2011
Authors: Virgil Provenzano, Shin G. Chou
Abstract: In this study, we use THz-based spectroscopy as a non-destructive diagnostic tool to characterize the corrosion by-products (rust) on aged iron structural components. Even though previous Mossbauer spectroscopic findings suggested the presence of an ...

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