Integrated optical microcavities for enhanced evanescent-wave spectroscopy

@article{citeulike:1655122, abstract = {The use of integrated optical microcavities (MCs) for enhanced optical spectroscopy and sensing is investigated. The MC sustains high-Q whispering-gallery modes, in which the energy of the optical field can be efficiently stored. The resulting enhanced field can be used to probe fluorescent molecules in the cladding of the MC. Enhanced fluorescence excitation with an integrated optical MC is demonstrated experimentally for what is believed to be the first time. A comparison between a MC and a straight waveguide shows that the MC may give an increase of 40 times in fluorescence excitation. Because of the ultrasmall size of the MC (15 \µm in radius), the fluorescence signal may be observed from only 20 molecules in the cladding. \©2002 Optical Society of America}, author = {Krioukov, E. and Klunder, D. J. W. and Driessen, A. and Greve, J. and Otto, C. }, citeulike-article-id = {1655122}, journal = {Optics Letters}, keywords = {biosensor, cavity\_resonator, disk\_resonator, fluorescence, optics, silicon\_nitride, silicon\_oxide, waveguide}, number = {17}, pages = {1504--1506}, posted-at = {2007-09-14 09:59:54}, priority = {2}, publisher = {OSA}, title = {Integrated optical microcavities for enhanced evanescent-wave spectroscopy}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=OPLEDP000027000017001504000001\&idtype=cvips\&gifs=yes}, volume = {27}, year = {2002} }

TY - JOUR ID - citeulike:1655122 L3 - citeulike-article-id:1655122 TI - Integrated optical microcavities for enhanced evanescent-wave spectroscopy JF - Optics Letters VL - 27 IS - 17 SP - 1504 EP - 1506 PB - OSA N2 - The use of integrated optical microcavities (MCs) for enhanced optical spectroscopy and sensing is investigated. The MC sustains high-Q whispering-gallery modes, in which the energy of the optical field can be efficiently stored. The resulting enhanced field can be used to probe fluorescent molecules in the cladding of the MC. Enhanced fluorescence excitation with an integrated optical MC is demonstrated experimentally for what is believed to be the first time. A comparison between a MC and a straight waveguide shows that the MC may give an increase of 40 times in fluorescence excitation. Because of the ultrasmall size of the MC (15 µm in radius), the fluorescence signal may be observed from only 20 molecules in the cladding. ©2002 Optical Society of America KW - biosensor KW - cavity_resonator KW - disk_resonator KW - fluorescence KW - optics KW - silicon_nitride KW - silicon_oxide KW - waveguide AU - Krioukov, E AU - Klunder, DJW AU - Driessen, A AU - Greve, J AU - Otto, C PY - 2002/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=OPLEDP000027000017001504000001&idtype=cvips&gifs=yes ER -