Determination of e/h ratio by optical measurements

Author

Kubarsepp, T. ; Tamre, M. ; Gran, Jarle ; Monakhov, E. ; Merimaa, M. ; Werner, Lars ; Rastello, M.L.

Author_Institution

AS Metrosert, Tallinn, Estonia

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

236

Lastpage

237

Abstract

A follow-up initiative of development in the field of optical radiometry undertaken in the frame of European Metrology Research Programme (EMRP) is described. Amongst the other tasks, the new project NEWSTAR aims at accurate determination of ratio e/h of fundamental constants - elementary charge e and Planck´s constant h. This is envisaged to achieve by using improved version of Predictable Quantum Efficiency Detector with carefully pre-examined physical properties of inversion-layer Silicon-photodiodes and advanced measurement techniques. The principal approach towards reaching the goal is presented and discussed.

Keywords

elemental semiconductors; optical sensors; optical variables measurement; photodetectors; photodiodes; radiometry; silicon; EMRP; European Metrology Research Programme; NEWSTAR; Planck constant h; Si; constants-elementary charge e; e-h ratio determination; inversion-layer silicon-photodiode; optical measurement; optical radiometry; pre-examined physical property; predictable quantum efficiency detector; Detectors; Measurement uncertainty; Optical reflection; Optical variables measurement; Radiometry; Semiconductor device measurement; Standards; Measurement; measurement standards; measurement uncertainty; optical radiometry; semiconductor technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898346

Filename

6898346