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Waveguide scattering antennas made by direct laser writing in bulk glass for spectrometry applications in the short-wave IR

Abstract : A buried straight waveguide perturbed periodically by six antennas composed of submicronic cylinder voids is entirely fabricated using ultrafast laser photoinscription. The light scattered from each antenna is oriented vertically and is detected by a short-wave IR camera bonded to the surface of the glass with no relay optics. The response of each antenna is analyzed using a wavelength tunable laser source and compared to simulated responses verifying the behavior of the antenna. These results show the good potential of the direct laser writing technique to realize monolithic embedded detectors by combining complex optical functions within a 3D design. A wavelength meter application with a spectral resolution of 150 pm is proposed to demonstrate this combination.
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https://hal-ujm.archives-ouvertes.fr/ujm-03753503
Contributor : Razvan Stoian Connect in order to contact the contributor
Submitted on : Thursday, August 18, 2022 - 1:27:42 PM
Last modification on : Monday, August 29, 2022 - 3:03:15 AM

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M. Callejo, M. Bonduelle, A. Morand, G. Zhang, J. Lv, et al.. Waveguide scattering antennas made by direct laser writing in bulk glass for spectrometry applications in the short-wave IR. Applied optics, Optical Society of America, 2022, 61 (24), pp.7173. ⟨10.1364/AO.464017⟩. ⟨ujm-03753503⟩

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