Dispersive photonic nanostructures for integrated sensors

Martina Gerken; Uli Lemmer

doi:10.1117/12.630827

17 November 2005 Dispersive photonic nanostructures for integrated sensors

Martina Gerken, Uli Lemmer

Proceedings Volume 6008, Nanosensing: Materials and Devices II; 60080W (2005) https://doi.org/10.1117/12.630827
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

Many sensing applications benefit from a wavelength-selective measurement. For integrated sensors it is therefore necessary to realize compact wavelength splitting devices. Here we discuss dispersive devices based on the photonic crystal superprism effect and related spatial dispersion effects in photonic nanostructures. We focus on one-dimensional nanostructures, since these can be realized reliably and cost-effectively as multilayer thin-film stacks. The thin-film stack is designed such that light incident at an angle experiences a wavelength-dependent spatial beam shift at the output surface allowing a wavelength-selective measurement. We introduce different algorithms for designing thin-film stacks with high spatial dispersion and discuss integration approaches. Results are presented showing that it is possible to custom-engineer both the magnitude of the dispersion as well as the dispersion properties with wavelength.

Citation Download Citation

Martina Gerken and Uli Lemmer "Dispersive photonic nanostructures for integrated sensors", Proc. SPIE 6008, Nanosensing: Materials and Devices II, 60080W (17 November 2005); https://doi.org/10.1117/12.630827

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