Nanoparticle Gratings for Compact Spectrometers: an Application of Photovoltaic Tweezers

Photorefractive Photonics 2017

Muñoz-Martínez, J.F.^1,2,3 ; Martín, G.^3 ; Alcázar, A.^1 ; Carrascosa, M.^2

Universidad Politécnica de Madrid, Dpto. de Mecánica de Fluidos y Propulsión Aeroespacial, ETSIAE, Madrid

28040, Spain^1

Universidad Autónoma de Madrid, Dpto. de Física de Materiales, Facultad de Ciencias, Cantoblanco, Madrid

28049, Spain^2

Université Grenoble Alpes, CNRS, IPAG, Grenoble

F-38000, France^3

关键词: Al-nanoparticles;    Dispersive spectrometers;    In-fiber;    Micro-objects;    Nanoparticle gratings;    Photovoltaic;    Portable device;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/867/1/012032/pdf
DOI  :  10.1088/1742-6596/867/1/012032

来源: IOP

【 摘 要 】

Compact spectrometers are useful in fiber-based setups, portable devices or systems where weight and space are limited. On the other side, Photovoltaic Tweezers (PVT) are a simple and flexible optoelectronic technique for patterning and trapping nano- and microobjects in accordance with arbitrary light profiles. In this work, Al nanoparticle (NP) gratings assembled by PVT have been used for the fabrication of SWIFTS-based and dispersive spectrometers. A method for transferring the NP structures has been successfully adapted to deposit these gratings on top of Ti-diffused LiNbO3 wavguides (WG) without a significant loss of quality; the successful transference of NP patterns to arbitrary substrates remarkably extends the potential applications of PVT.