Maximizing opto-elastic interaction using topology optimization

Allan Roulund Gersborg, Ole Sigmund

Research output: Contribution to conferencePosterResearchpeer-review


When a photonic device is subjected to a mechanical load, there are two effects which change the optical response relative to the reference configuration. First, there is the geometrical effect caused by geometrical changes, i.e. the deformation of the reference geometry to the deformed geometry. Secondly, there is the photo-elastic effect which changes the refractive index through Pockel's coefficients as the material is strained. For the case of transverse electric modes, we study how the two effects change the material distribution which maximizes the change in the optical transmission properties when the device is subjected to a static mechanical pre-strain. Material distributions consisting of air inclusions in silicon are considered. The optimized material distributions are computed using topology optimization.
Original languageEnglish
Publication date2008
Publication statusPublished - 2008
EventNanoday December 2 : Nano DTU -
Duration: 1 Jan 2008 → …


ConferenceNanoday December 2 : Nano DTU
Period01/01/2008 → …


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