Method for the chip-integrated spectroscopic identification of solids, liquids, and gases
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United States of America Patent
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Oct 13, 2015
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Mar 27, 2014
app pub date -
Nov 26, 2013
filing date -
Aug 23, 2010
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Abstract
Methods and systems for a label-free on-chip optical absorption spectrometer consisting of a photonic crystal slot waveguide are disclosed. The invention comprises an on-chip integrated optical absorption spectroscopy device that combines the slow light effect in photonic crystal waveguide and optical field enhancement in a slot waveguide and enables detection and identification of multiple analytes to be performed simultaneously using optical absorption techniques leading to a device for chemical and biological sensing, trace detection, and identification via unique analyte absorption spectral signatures. Other embodiments are described and claimed.
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