Photonic crystal nanolasers with nanoslot structure for sensing applications

T. Baba; S. Kita; H. Abe; S. Hachuda; M. Narimatsu; S. Otsuka; K. Nozaki

doi:10.1117/12.893577

12 September 2011 Photonic crystal nanolasers with nanoslot structure for sensing applications

T. Baba, S. Kita, H. Abe, S. Hachuda, M. Narimatsu, S. Otsuka, K. Nozaki

Proceedings Volume 8095, Active Photonic Materials IV; 80950X (2011) https://doi.org/10.1117/12.893577
Event: SPIE NanoScience + Engineering, 2011, San Diego, California, United States

Abstract

High-performance and low-cost sensors are critical devices for high-throughput analyses of bio-samples in medical diagnoses and life sciences. In this paper, we demonstrate photonic crystal nanolaser sensor, which detects the adsorption of biomolecules from the lasing wavelength shift. It is a promising device, which balances a high sensitivity, high resolution, small size, easy integration, simple setup and low cost. In particular with a nanoslot structure, it achieves a super-sensitivity in protein sensing whose detection limit is three orders of magnitude lower than that of standard surface-plasmon-resonance sensors. Our investigations indicate that the nanoslot acts as a protein condenser powered by the optical gradient force, which arises from the strong localization of laser mode in the nanoslot.

Citation Download Citation

T. Baba, S. Kita, H. Abe, S. Hachuda, M. Narimatsu, S. Otsuka, and K. Nozaki "Photonic crystal nanolasers with nanoslot structure for sensing applications", Proc. SPIE 8095, Active Photonic Materials IV, 80950X (12 September 2011); https://doi.org/10.1117/12.893577

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