Publications Portal

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

Displaying records 31 to 40 of 48 records.
Resort by: Date / Title

31. Precision spectroscopy with frequency combs at 3.4 {mu}m
Topic: Optical Physics
Published: 8/2/2011
Authors: Esther Baumann, Fabrizio Raphael Giorgetta, William C Swann, Alexander M. Zolot, Ian R Coddington, Nathan Reynolds Newbury
Abstract: We discuss precision spectroscopy with a comb-based spectrometer at 3.4 {mu}m. Our goal is to explore comb-based spectroscopy as an alternative method for fast, highly resolved, accurate measurements of gas line shapes. The spectrometer uses dual 1.5 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909488

32. Progress Toward Corrugated Feed Horn Arrays in Silicon
Topic: Optical Physics
Published: 12/16/2009
Authors: Joseph Wright Britton, Ki W. Yoon, James A Beall, Daniel Thomas Becker, Hsiao-Mei Cho, Gene C Hilton, Michael David Niemack, Kent D Irwin
Abstract: We are developing monolithic arrays of corrugated feed horns fabricated in silicon for dual-polarization single mode operation at 90, 145 and 220 GHz. The arrays consist of hundreds of platelet feed horns assembled from gold coated stacks of micromac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903191

33. Quasianalytical modal approach for computing Casimir interactions in periodic nanostructures
Topic: Optical Physics
Published: 10/3/2012
Authors: Francesco Intravaia, Paul S Davids, Ricardo Decca, Vladimir A Aksyuk, Daniel Lopez, Diego A. R. Dalvit
Abstract: We present an almost fully analytical technique for computing Casimir interactions between 1D periodic lamellar gratings based on a modal approach. Our method improves on previous work on Casimir modal approaches for nanostructures by using the exa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912110

34. Rapid, high resolution frequency comb measurements
Topic: Optical Physics
Published: 2/13/2011
Authors: Ian R Coddington, Fabrizio Raphael Giorgetta, Esther Baumann, William C Swann, Nathan Reynolds Newbury
Abstract: Frequency combs serve as an extremely high accuracy reference across broad portions of the optical spectrum. Dual frequency combs harness this accuracy and allow for fast and highly flexible measurements of passive and active sources.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907399

35. Remote sensing of chiral signatures on Mars
Topic: Optical Physics
Published: 11/1/2012
Authors: William Sparks, James H. Hough, Thomas Avery Germer, Frank Robb, Ludmilla Kolokolova
Abstract: We describe circular polarization as a remote sensing diagnostic of chiral signatures which may be applied to Mars. The remarkable phenomenon of homochirality provides a unique biosignature which can be amenable to remote sensing through circular ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910692

36. Scatterfield Optical Imaging for sub-10 nm Dimensional Metrology
Topic: Optical Physics
Published: 1/1/2009
Author: Richard M Silver
Abstract: Recent developments in optical microscopy promise to advance optical metrology and imaging to unprecedented levels through theoretical and experimental development of a new measurement technique called "scatterfield optical imaging". ". Current met ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901009

37. Sensitivity Comparison of Mx and Frequency Modulated Bell-Bloom Cs Magnetometers in a Micro-Fabricated Cell
Topic: Optical Physics
Published: 2/1/2010
Authors: Ricardo Jimenez Martinez, William C. Griffith, Ying-ju Wang, Svenja A Knappe, John E Kitching, Ken Smith, Mark Prouty
Abstract: We compare the sensitivity performance of two optically pumped atomic magnetometers based on the Mx and frequency-modulated Bell-Bloom configurations. The Cs magnetometers are implemented using a millimeter-scale microfabricated vapor cell in a confi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842606

38. Stimulated Generation of Superluminal Light Pulses via Four-wave Mixing
Topic: Optical Physics
Published: 4/26/2012
Authors: Ryan Thomas Glasser, Ulrich Vogl, Paul D Lett
Abstract: We report on the four-wave mixing of superluminal pulses, in which both the injected and generated pulses involved in the process propagate with negative group velocities. Generated pulses with negative group velocities of up to vg = −c/880 ar ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910231

39. Sub-micron absolute distance measurements in sub-millisecond times with dual free-running femtosecond Er fiber-lasers
Topic: Optical Physics
Published: 9/12/2011
Authors: Tze-An Lui, Nathan Reynolds Newbury, Ian R Coddington
Abstract: We demonstrate a simplified dual-comb lidar setup for precision absolute ranging that can achieve a ranging precision at a meter of 2 {mu}m in 140 {mu}s acquisition time. With averaging, the precision drops below 1 micron at 0.8 msec and below 200 nm ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908892

40. Sub-micron force detection using optically-cooled levitated microspheres
Topic: Optical Physics
Published: 9/3/2010
Authors: Andrew Geraci, Scott Brian Papp, John E Kitching
Abstract: We propose an experiment using optically trapped and cooled dielectric microspheres for the detection of short-range forces. The center-of-mass motion of a microsphere trapped in vacuum can experience extremely low dissipation and quality factors of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905784