Photothermal Deflection Spectroscopy of Collected Aerosols

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Finite Element Analysis Calculations The experiments aremodeled as functions of– Aerosol size– Aerosol optical absorbance– Aerosol heat capacity andthermal conductivity– Arrangements of aerosolson surface– Substrate heat capacity andthermal conductivity
Particle “Crowding” Effect Does inter-particle contact affect the photothermal signal? Modeled as three 2 μm m diameter particles with variable distancebetween them The total time-dependent photothermal deflection signal is calculatedConclusion:inter-particle heat transferaffects signal magnitudeand shapePhotothermal Deflection1.210.80.60.40.204um 2m 1um no interval0 0.5 1 1.5 2 2.5 3Time [μs]
Page 3 and 4: Chemical Analysis Perspective ofPho
Page 5 and 6: Apparatuses to DetectPhotothermal H
Page 7 and 8: Photothermal Detection: ComparisonC
Page 9 and 10: Further Considerations for Chemical
Page 11 and 12: Photothermal Detection of Condensed
Page 13 and 14: PM - Updated RulesUS EPA Fine Parti
Page 15 and 16: Laboratory-Based Condensed PhaseAer
Page 17 and 18: Aerosol / Particle Generation Nebul
Page 19 and 20: Aerosols Generation and SamplingAto
Page 21 and 22: Size and Number Calibration Aerosol
Page 23 and 24: IR Laser-Excited Photothermal Defle
Page 25 and 26: Aerosols Number Concentration100908
Page 27 and 28: So why are the detection limits so
Page 29 and 30: MOUDI Calibration CurveStage 6 (0.5
Page 31: Finite Element Analysis Modeling Fi
Page 35 and 36: Results for Substrate Thermal Condu
Page 37 and 38: Inference from Heat Transport and S
Page 39 and 40: Future Aerosol Work We need to us a
Page 41: Acknowledgements Several persons wo

Photothermal Deflection Spectroscopy of Collected Aerosols

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