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Harald G. L. Schwefel

Researcher at University of Otago

Publications -  165
Citations -  3421

Harald G. L. Schwefel is an academic researcher from University of Otago. The author has contributed to research in topics: Whispering-gallery wave & Resonator. The author has an hindex of 31, co-authored 150 publications receiving 2812 citations. Previous affiliations of Harald G. L. Schwefel include Yale University & University of Erlangen-Nuremberg.

Papers
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Journal ArticleDOI

Nonlinear and quantum optics with whispering gallery resonators

Dmitry Strekalov, +4 more
- 16 Nov 2016 - 
TL;DR: Optical Whispering Gallery Modes (WGMs) derive their name from a famous acoustic phenomenon of guiding a wave by a curved boundary observed nearly a century ago as mentioned in this paper, which enables resonators of unique properties attractive both in science and engineering.
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Efficient microwave to optical photon conversion: an electro-optical realization

Alfredo Rueda, +11 more
TL;DR: In this paper, a single-sideband up-or down-conversion in a triply resonant whispering gallery mode resonator with asymmetric free spectral range (AFS) was demonstrated.
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Dramatic shape sensitivity of directional emission patterns from similarly deformed cylindrical polymer lasers

Harald G. L. Schwefel, +6 more
- 01 May 2004 - 
TL;DR: In this paper, it was shown that the differences in the appropriate phase space for ray motion are the decisive factors in determining the far-field pattern of polymer microcavity laser emission.
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Efficient single sideband microwave to optical conversion using an electro-optical whispering gallery mode resonator

Alfredo Rueda, +11 more
- 27 Jan 2016 - 
TL;DR: In this article, a triply resonant whispering gallery mode resonator with asymmetric free spectral range (AFRS) was proposed to achieve a three orders of magnitude improvement in the electro-optical conversion efficiency reaching 0.1% photon number conversion for a 10GHz microwave tone at 0.42mW of optical pump power.
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Coherent Conversion Between Microwave and Optical Photons—An Overview of Physical Implementations

Nicholas J. Lambert, +6 more
TL;DR: In this article, the necessary theoretical foundations for the most important microwave-to-optical conversion experiments are provided, their implementations are described, and the current limitations and future prospects are discussed.