Fabrication of holographic lens as a coupling device in surface plasmon resonance biosensor

Prasopporn Junlabhut; Suwannee Phoojaruenchanachai; Wisanu Pecharapa; Sakoolkan Boonruang

doi:10.1117/12.860379

19 May 2010 Fabrication of holographic lens as a coupling device in surface plasmon resonance biosensor

Prasopporn Junlabhut, Suwannee Phoojaruenchanachai, Wisanu Pecharapa, Sakoolkan Boonruang

Proceedings Volume 7743, Southeast Asian International Advances in Micro/Nanotechnology; 774302 (2010) https://doi.org/10.1117/12.860379
Event: Southeast Asian International Advances in Micro/Nano-technology, 2010, Bangkok, Thailand

Abstract

Holographic lens is proposed as a light coupling device integrated in surface plasmon resonance (SPR) biosensor chips to concise the SPR optical system. Having a sub-wavelength pattern with an asymmetric profile, the lens couples light via a first order wave which excites the surface plasmon wave along the sensing spot. The design and fabrication process are included in this work, where a laser interference lithography technique is utilized as it requires only single step to write a lens' pattern. The preliminary result indicates the first order wave with 20% diffraction efficiency.

Citation Download Citation

Prasopporn Junlabhut, Suwannee Phoojaruenchanachai, Wisanu Pecharapa, and Sakoolkan Boonruang "Fabrication of holographic lens as a coupling device in surface plasmon resonance biosensor", Proc. SPIE 7743, Southeast Asian International Advances in Micro/Nanotechnology, 774302 (19 May 2010); https://doi.org/10.1117/12.860379

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