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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 | Factors involved in immunity against Actinobacillus pleuropneumoniae 显示文摘 | Bhatia B Mittal K R Frey J | 1991 | Vet Microbiol1991，29，： | 2 |
| 3 | Post spinning modification of PAN fibers-a review显示文摘 | Mittal J Mathur R B Bahl O P | 1997 | Carbon1997，35，12： | 1 |
| 4 | Factors involved in immunity a- gainst Actinobacillus pleuropneumoniae in mice显示文摘 | Bhatia B Mittal K R Frey J | 1991 | Vet Microbi- ol1991，29，2： | 1 |
| 5 | Factors involved in immunity against Actionbacillus pleuropmeumonia in mice 显示文摘 | Bhatia B Mittal K R Frey J | 1991 | Vet Microbiol1991，29，： | 1 |
| 6 | Relationships of physical properties of fat-substitutes,cooking methods and fat levels with quality of ground beef patties显示文摘 | J JU G S mittal | 2000 | Journal of Food Processing and Preservation2000，24，： | 1 |
| 7 | Room temperature filling of single-wall carbon nanotubes with chromium oxide in open air显示文摘 | Mittal J Monthioux M Allouche H | 2001 | Chemical Physics Letters2001，339，545： | 1 |
| 8 | Optic neuritis associated with Chikungunya virus infection in South India 显示文摘 | Mittal A Mittal S Bharati M J | 2007 | Arch Ophthalmol2007，125，10： | 1 |
| 9 | High immunoglobulin A seropositivity for combined Chlamydia pneumoniae, Helicobacter pylori infection, and high - sensitivity C - reactive protein in coronary artery disease patients in India can serve as atherosclerotic marker 显示文摘 | Jha H C J Prasad A Mittal | 2008 | Heart Ves- sels2008，23，6： | 1 |
| 10 | A systematic review of methods to palli- ate malignant gastric outlet obstruction 显示文摘 | Ly J OGrady G Mittal A | 2010 | Surg Endosc2010，24，： | 1 |
| 11 | A new approach to thermal stabilization of PAN fibers显示文摘 | Mathur R B Bahl O P Mittal J | 1992 | Carbon1992，30，4： | 1 |
| 12 | The 32 kDa major outer membrane protein of Pasteurella multocida capsular serumtype D显示文摘 | Vasfi M M Dubreuil J D Mittal K R | 1996 | Microbiology1996，142，： | 1 |
| 13 | Ocular myasthenia gravis in an academic neuro-ophthah+uology clinic: clinical features and therapeutic response显示文摘 | Mittal MK Barohn R J Pasnuor M el al | 2011 | J Clin Neuromuseul Dis2011，13，： | 1 |
| 14 | Expression and function of pancreatic β-cell delayed rectifier K+ channels显示文摘 | ROE M W WORLEY J F MITTAL A | 1996 | J Biol Chem1996，，32： | 1 |
| 15 | Evaluation of cylindricity using combinatorics 显示文摘 | Hodgson Thom J Kay Michael G Mittal Ravio | 1999 | HE Transactions1999，31，： | 1 |
| 16 | Mesh complications after prosthetic reinforcement of hiatal closure a 28-case series显示文摘 | Stadlhuber R J Sherif AE Mittal SK | 2009 | Surg Endosc2009，23，6： | 1 |
| 17 | Susceptibility-weightedimaging: technical aspects and clinical application, part 2 显示文摘 | Mittal S Wu Z Neelavalli J | 2009 | AJNR2009，30，2： | 1 |
| 18 | E3 analysis forcrude and vacuum distillation system显示文摘 | MITTAL V ZHANG J YANG X | 2011 | Chemical Engi-neering & Technology2011，34，11： | 1 |
| 19 | Placental growth hormone is increased in the maternal and fetal serum of patients with preeclampsia 显示文摘 | Mittal P Espinoza J Hassan S | 2007 | J Matern Fetal Neonatal Med2007，20，： | 1 |
| 20 | Effects of high field electric pulses on the activity of selected enzymes显示文摘 | Ho S Y Mittal G S Cross J D | 1997 | Journal of Food Engineering1997，31，1： | 1 |
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