The dual-mode detector - development of a self-calibrating primary standard for optical power measurement
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- Fysisk institutt [3682]
Sammendrag
This thesis describes the development of a dual-mode optical power detector, where two measurement principles are combined into one device. The dual-mode detector combines the principles of thermal detection and photo-electrical detection, using a photodiode as the absorber. The combination of the two principles into one device allows the advantages of both methods to be exploited, and in addition new advantages are introduced. One major advantage of the dual-mode detector is that the thermal mode of the detector can be used as a reference to calibrate the photodiode. This allows quick and easy measurements without the need of external calibration, making the detector ideal for operation in remote locations, such as satellites. In addition, the thesis shows that the dual-mode detector can create a strong link between radiometric measurements and the new SI system of units that will be implemented in 2019, through the relationship between the elementary charge e and the Planck constant h. During the course of this work, a dual-mode detector was developed and studied, through both experimental work and heat transfer computer simulations. The thesis presents the design and measurement procedure of three prototypes of the detector, from a basic proof-of-principle design, to a more advanced design, where several uncertainty contributors were either eliminated or reduced.Artikkelliste
1: First measurements of fundamental constants with a predictable photodiode cryogenic radiometer. M. U. Sandsaunet, C. K. Tang, J. Gran. Proceedings of the 29th Conference on Precision Electromagnetic Measurements (CPEM 2014) p 238-239. The paper is not available in DUO due to publisher restrictions. The published version is available at: https://doi.org/10.1109/CPEM.2014.6898347 |
2: Demonstration of a dual-mode Si detector as a self-calibrating device at room temperature. M. U. Nordsveen, C. K. Tang, J. Gran. Optics Express 25 (2017) 8459-8469. The article is included in the file. Also available at: https://doi.org/10.1364/OE.25.008459 |
3: The self-calibrating dual-mode Si detector - Improved design based on Comsol Multiphysics simulations. M. U. Nordsveen, C. K. Tang, J. Gran. Proceedings of Conference on Lasers and Electro-Optics (CLEO 2017). ATh3B.7 The paper is not available in DUO due to publisher restrictions. The published version is available at: https://www.osapublishing.org/abstract.cfm?URI=CLEO_AT-2017-ATh3B.7 |
4: The dual-mode optical power detector - the self-calibration procedure and improvements on thermal design. M. U. Nordsveen, C. K. Tang, J. Gran. Submitted to Metrologia. The paper is not available in DUO awaiting publishing. |
5 3D device simulation and measurement of a p-type Predictable Quantum Efficient Detector; Characteristics of p-type induced junction photodiodes. C. K. Tang, M. U. Nordsveen, J. Gran. Submitted to Measurement Science and Technology. The paper is not available in DUO awaiting publishing. |