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Zeeshan Ahmed   Dr.  Senior Scientist or Principal Investigator 
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Zeeshan Ahmed published an article in October 2018.
Top co-authors
Matthew R. Hartings

28 shared publications

American University, NW, Washington, DC, United States of America

G. F. Strouse

14 shared publications

National Institute of Standards and Technology Sensor Science Division Thermodynamic Metrology 100 Bureau Drive, MS-8363 Gaithersburg, MD 20899-8363

James Filla

4 shared publications

Innovations and Solutions Division, National Institute of Standards and Technology, Gaithersburg, MD 20899

John Quintavalle

3 shared publications

Innovations and Solutions Division, National Institute of Standards and Technology, Gaithersburg, MD 20899

Khazar Choudhry

2 shared publications

Thermodynamic Metrology Group Sensor Science Division National Institute of Standards and Technology 100 Bureau Drive Gaithersburg, MD 20899

41
Publications
12
Reads
0
Downloads
43
Citations
Publication Record
Distribution of Articles published per year 
(2013 - 2018)
Total number of journals
published in
 
19
 
Publications See all
Article 0 Reads 0 Citations Fabrication and Testing of Photonic Thermometers Nikolai N. Klimov, Zeeshan Ahmed Published: 24 October 2018
Journal of Visualized Experiments, doi: 10.3791/55807
DOI See at publisher website
Article 0 Reads 0 Citations Assessing Radiation Hardness of Silicon Photonic Sensors Zeeshan Ahmed, Lonnie T. Cumberland, Nikolai N. Klimov, Ilea... Published: 29 August 2018
Scientific Reports, doi: 10.1038/s41598-018-31286-9
DOI See at publisher website PubMed View at PubMed ABS Show/hide abstract
In recent years, silicon photonic platforms have undergone rapid maturation enabling not only optical communication but complex scientific experiments ranging from sensors applications to fundamental physics investigations. There is considerable interest in deploying photonics-based communication and science instruments in harsh environments such as outer space, where radiation damage is a significant concern. In this study, we have examined the impact of cobalt-60 γ-ray radiation up to 1 megagray (MGy) absorbed dose on silicon photonic devices. We do not find any systematic impact of radiation on passivated devices, indicating the durability of passivated silicon devices under harsh conditions.
Article 0 Reads 1 Citation Humidity responsive photonic sensor based on a carboxymethyl cellulose mechanical actuator Matthew Hartings, Kevin O. Douglass, Claire Neice, Zeeshan A... Published: 01 July 2018
Sensors and Actuators B: Chemical, doi: 10.1016/j.snb.2018.03.065
DOI See at publisher website
Article 0 Reads 1 Citation Review Article: Quantum-based vacuum metrology at the National Institute of Standards and Technology Julia Scherschligt, James A. Fedchak, Zeeshan Ahmed, Daniel ... Published: 01 July 2018
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, doi: 10.1116/1.5033568
DOI See at publisher website ABS Show/hide abstract
The measurement science in realizing and disseminating the unit for pressure in the International System of Units, the pascal (Pa), has been the subject of much interest at the National Institute of Standards and Technology (NIST). Modern optical-based techniques for pascal metrology have been investigated, including multiphoton ionization and cavity ringdown spectroscopy. Work is ongoing to recast the pascal in terms of quantum properties and fundamental constants and in doing so make vacuum metrology consistent with the global trend toward quantum-based metrology. NIST has ongoing projects that interrogate the index of refraction of a gas using an optical cavity for low vacuum, and count background particles in high vacuum to extreme high vacuum using trapped laser-cooled atoms.
PREPRINT 0 Reads 0 Citations Quantum-based vacuum metrology at NIST Julia Scherschligt, James A. Fedchak, Zeeshan Ahmed, Daniel ... Published: 17 May 2018
ABS Show/hide abstract
The measurement science in realizing and disseminating the unit for pressure in the International System of Units (SI), the pascal (Pa), has been the subject of much interest at the National Institute of Standards and Technology (NIST). Modern optical-based techniques for pascal metrology have been investigated, including multi-photon ionization and cavity ringdown spectroscopy. Work is ongoing to recast the pascal in terms of quantum properties and fundamental constants and in so doing, make vacuum metrology consistent with the global trend toward quantum-based metrology. NIST has ongoing projects that interrogate the index of refraction of a gas using an optical cavity for low vacuum, and count background particles in high vacuum to extreme high vacuum using trapped laser-cooled atoms.
Article 1 Read 0 Citations Towards traceable transient pressure metrology Edward Hanson, Douglas A Olson, Haijun Liu, Zeeshan Ahmed, K... Published: 13 March 2018
Metrologia, doi: 10.1088/1681-7575/aaad1b
DOI See at publisher website
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