Abstract
Photonic crystals (PhCs) provide light trapping properties that allow people to control the flow of light, and three dimensional PhCs have been proposed as the most efficient light trapping microstructures [1]. The photonic band structure is the most important optical property of a PhC, which describes the dispersion relation for propagating modes within the structure. By measuring the bandstructure one can obtain an accurate description of the optical performance of a PhC [2]. In this case we proposed a method based on the Fourier Imaging Spectroscopy [3] (FIS) to visualize the bandstructure of a 3D-PhC microstructure in the near infrared wavelength range. This setup has potential to work at any wavelength and could be engineered into a fully portable device.
© 2017 IEEE
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