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| 1 | Extraordinary evanescent field confinement waveguide sensor for mid-infrared trace gas spectroscopy显示文摘Nanophotonic waveguides are at the core of a great variety of optical sensors.These structures confine light along defined paths on photonic chips and provide light-matter interaction via an evanescent field.However,waveguides still lag behind free-space optics for sensitivity-critical applications such as trace gas detection.Short optical pathlengths,low interaction strengths,and spurious etalon fringes in spectral transmission are among the main reasons why on-chip gas sensing is still in its infancy.In this work,we report on a mid-infrared integrated waveguide sensor that successfully addresses these drawbacks.This sensor operates with a 107%evanescent field confinement factor in air,which not only matches but also outperforms free-space beams in terms of the per-length optical interaction.Furthermore,negligible facet reflections result in a flat spectral background and record-low absorbance noise that can finally compete with free-space spectroscopy.The sensor performance was validated at 2.566μm,which showed a 7 ppm detection limit for acetylene with only a 2 cm long waveguide. | Marek Vlk Anurup Datta Sebastián Alberti Henock Demessie Yallew Vinita Mittal Ganapathy Senthil Murugan Jána Jagerská | 2021 | Light(Science & Applications)2021，10，2： | 9 |
| 2 | Do managers crediblyuse accruals to signal private information Evidence from the pricing of discretionary accruals around stock splits显示文摘 | Louis Henock Dahlia Robinson | 2005 | Journal of Accounting and Economics2005，39，2： | 1 |
| 3 | Value of Cash Holdings and Accounting Conservatism*显示文摘 | Henock Louis Amy X. Sun Oktay Urcan | 2012 | Contemporary Accounting Research2012，，4： | 1 |
| 4 | Do managers intentionally use repurchase tender offers to signal private information? Evidence from firm financial reporting behavior 显示文摘 | Henock Louis Hal White | 2007 | Journal of Financial Economics2007，85，1： | 1 |
| 5 | Managers' and investors' responses to media exposure of board ineffectiveness 显示文摘 | Joe J Henock L Dahlia R | 2009 | Journal of Financial and Quantitative Analysis2009，，44： | 1 |
| 6 | 2004,Earnings management and the market performance of acquiring firms显示文摘 | Louis Henock | 2004 | Journal of Financial E-conomics2004，，： | 1 |
| 7 | Managers' and Investors' Responses to Media Exposure of Board Ineffectiveness 显示文摘 | JOE J R HENOCK LOUIS DAHLIA ROBINSON | 2009 | Journal of Financial and Quantitative Analysis2009，44，3： | 1 |
| 8 | Earnings Management and the Market Performance ofAcquiring Firms显示文摘 | Henock Louis | 2004 | Journal of Financial Economics2004，，74： | 1 |
| 9 | Earnings Management and the Market Performance of Acquiring Firms显示文摘 | Louis Henock | 2004 | Journal of Financial Economics2004，74，1： | 1 |
| 10 | Earnings management, lawsuits, and stock-for-stock acquirers’ market performance显示文摘 | Guojin Gong Henock Louis Amy X. Sun | 2008 | Journal of Accounting and Economics2008，，1： | 1 |
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