论文信息 - Raman sensing in microresonators

Raman sensing in microresonators

High-quality whispering-gallery-mode optical resonators have garnered interest in particle sensing for a variety of applications. Here, we further explore the idea of using microresonators to enhance single-particle detection and identification by monitoring the Raman scattering from a particle adhered to a silica micro-sphere. A tunable diode laser is critically coupled into a resonant mode of the micro-sphere resonator, allowing circulating power to build up within the cavity for enhanced interaction with the attached particle. Experimental results of single particle Raman scattering in microsphere resonators are presented.

[1] K. Vahala. Optical microcavities , 2003, Nature.

[2] S. Arnold,et al. Single virus detection from the reactive shift of a whispering-gallery mode , 2008, Proceedings of the National Academy of Sciences.

[3] T. Kippenberg,et al. Nonlinear Optics in Ultra-high-Q Whispering-Gallery Optical Microcavities , 2004 .

[4] Kebin Shi,et al. Broadband coherent anti-Stokes Raman scattering spectroscopy in supercontinuum optical trap , 2007 .

[5] Lan Yang,et al. On-chip single nanoparticle detection and sizing by mode splitting in an ultrahigh- Q microresonator , 2010 .

[6] Lan Yang,et al. Label-Free Particle Sensing by Fiber Taper-Based Raman Spectroscopy , 2014, IEEE Photonics Technology Letters.

[7] Rajan P Kulkarni,et al. Label-Free, Single-Molecule Detection with Optical Microcavities , 2007, Science.

[8] K. S. Krishnan,et al. A New Type of Secondary Radiation , 1928, Nature.

[9] P. Stoddart,et al. Optical fibre SERS sensors , 2009, Analytical and bioanalytical chemistry.

[10] Govind P. Agrawal,et al. Nonlinear Fiber Optics , 1989 .

[11] S. Arnold,et al. Whispering-gallery-mode biosensing: label-free detection down to single molecules , 2008, Nature Methods.

[12] T. J. Kippenberg,et al. Ultra-high-Q toroid microcavity on a chip , 2003, Nature.

[13] Randall H Goldsmith,et al. Photothermal Microscopy of Nonluminescent Single Particles Enabled by Optical Microresonators. , 2014, The journal of physical chemistry letters.