Undergraduate student Bill Green from Mechanical Engineering recently presented his work on Gradient Index (GRIN) Metrology at the 31st Annual ASPE Meeting. His work, entitled Development of a Twyman-Green Interferometer Capable of Measuring the Thermal Properties of Optical Materials, was presented on behalf of co-authors James Corsetti, Greg Schmidt, Duncan Moore, and Jonathan Ellis. It is a pretty rare feat for an undergraduate student to be selected to present at a major international conference. Well done Bill!
Papers by Chen Wang and Bill Green have appeared in their final form online. Chen’s paper, Data Age Error Compensation for Nonconstant Velocity Metrology, was recently accepted in IEEE Transactions on Instrumentation and Measurement. Bill’s paper, with a PhD student James Corsetti from Optics, was recently accepted and published by Applied Optics. This paper is on Simultaneous interferometric measurement of linear coefficient of thermal expansion and temperature-dependent refractive index coefficient of optical materials. Links to both papers can be found on the publications page. Nice job and congratulations!
Bill Green, Mechanical Engineering Undergraduate Student, has had a paper accepted as a co-author by Optical Engineering. This is Bill’s first time co-authoring a paper. Additionally, Bill will be presenting his work on thermal expansion and dn/dT metrology at the upcoming ASPE Annual Meeting in Portland, OR. When the final version is published and online, we’ll be sure to update.
Xiangzhi Yu and Chen Wang both have had first author publications accepted recently. Chen’s paper is Data age error compensation for non-constant velocity metrology, which advances his previous work on data age error to arbitrary orders. This paper has been accepted into IEEE Transactions on Instrumentation and Measurement. More details will be posted when available.
Xiangzhi had two 1st author papers published. His first is with Dr. Tieli Zhang, a former visiting scientist in the group from the Beijing Aerospace Institute for Metrology & Measurement Technology, on Absolute air refractive index measurement and tracking based on variable length vacuum cell. This work was supported by NIST and the paper was published in Optical Engineering. Xiangzhi’s second paper was with co-authors Dr. Steven Gillmer (now at MIT Lincoln Labs) and Dr. Shane Woody (InSituTec, Inc.) and was published in Review of Scientific Instruments. This work was on the Development of a compact, fiber-coupled, six degree-of-freedom measurement system for precision linear stage metrology with research support from NIST and NSF.
Congratulations to both students and the rest of their team! Well done!
Jonathan Ellis, along with researchers at the University of South Carolina and the University of North Carolina at Charlotte have recently had a paper accepted in Precision Engineering. The paper entitled, “Application of the continuous wavelet transform in periodic error compensation,” demonstrates a novel algorithm for the compensation of periodic error for both constant and non-constant velocity motion. Congratulations to first author Chao Lu, a MechE PhD student under Prof. Joshua A. Tarbutton at the University of South Carolina, for his first 1st author journal publication!
The prepress of the paper can be accessed here.
Research by MechE PhD students Xiangzhi Yu and Steven Gillmer has been published by Measurement Science & Technology. Their work, Beam geometry, alignment, and wavefront aberration effects on interferometric differential wavefront sensing, shows how including these effects in DWS can enable calibration level measurements for linear stages. More information on the article can be found here.
Congratulations to Sam Butler and Mike Ricci, MS students in the Department of Mechanical Engineering, for presenting their work at the 2015 SPIE OptiFab conference in Rochester, NY. Their work with co-authors Chen Wang (UR-ECE) and Dr. Qun Wei (CIOMP and UR-Optics) entitled Homodyne displacement measuring interferometer probe for optical coordinate measuring machine with tip and tilt sensitivity was awarded 1st prize in the APOMA Outstanding Student Poster Competition, sponsored by the American Precision Optics Manufacturers Association (APOMA). More information on the award can be found here and their paper can be found here.
Mechanical Engineering PhD students Xiangzhi Yu and Steven Gillmer have just had a paper accepted in Measurement Science & Technology. This paper is Xiangzhi’s first ‘1st author’ paper and is on his work on differential wavefront sensing. More details to follow!
Congratulations to the PhD students Gustavo Gandara-Montano and Yang Zhao for having their work recently published.
Yang’s work is on using low coherence interferometry to measure the absolute thickness of samples with sub-micrometer accuracy. His work was published in the journal Applied Optics and the link to his article can be found here.
Gustavo, in collaboration with the Knox Lab, had his work on femtosecond micromachining of GRIN microlenses published in the journal Optical Materials Express. The link to his paper can be found here.