Prof. Michael E. Thomas
Principal Staff at Johns Hopkins Univ
SPIE Involvement:
Author | Instructor
Publications (87)

Proceedings Article | 12 April 2021 Presentation + Paper
Proc. SPIE. 11740, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXII
KEYWORDS: Refractive index, Crystals, Domes, Windows, Spectral models, Temperature metrology, Absorption

Proceedings Article | 20 August 2020 Presentation + Paper
Proc. SPIE. 11485, Reflection, Scattering, and Diffraction from Surfaces VII
KEYWORDS: Diffraction, Refractive index, Optical spheres, Polarization, Particles, Electromagnetic radiation, Spherical lenses, Atmospheric particles, Atmospheric modeling

SPIE Journal Paper | 12 August 2020
OE Vol. 59 Issue 08
KEYWORDS: Absorption, Scattering, Sapphire, Surface finishing, Particles, Crystals, Data modeling, Optical engineering, Laser scattering

Proceedings Article | 8 May 2020 Presentation + Paper
Proc. SPIE. 11416, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXI
KEYWORDS: Polarization, LIDAR, Aerosols, Particles, Polarimetry, Clouds, Atmospheric particles, Atmospheric modeling

Proceedings Article | 13 May 2019 Paper
Proc. SPIE. 10985, Window and Dome Technologies and Materials XVI
KEYWORDS: Mid-IR, Visible radiation, Data modeling, Ultraviolet radiation, Crystals, Chemical vapor deposition, Infrared radiation, Scatter measurement, Surface finishing, Absorption

Showing 5 of 87 publications
Conference Committee Involvement (14)
Reflection, Scattering, and Diffraction from Surfaces VII
24 August 2020 | Online Only, California, United States
Window and Dome Technologies and Materials XVI
18 April 2019 | Baltimore, Maryland, United States
Reflection, Scattering, and Diffraction from Surfaces VI
20 August 2018 | San Diego, California, United States
Window and Dome Technologies and Materials XV
11 April 2017 | Anaheim, California, United States
Window and Dome Technologies and Materials XIV
22 April 2015 | Baltimore, Maryland, United States
Showing 5 of 14 Conference Committees
Course Instructor
SC1107: IR Atmospheric Propagation for Sensor Systems
This course reviews the fundamental principles and applications concerning absorption, refraction and scattering phenomena in the atmosphere that impact infrared sensor performance. Topics include an introduction to atmospheric structure, a background reviewing the basic formulas concerning the complex index of refraction, a survey of molecular absorption bands and continuum absorption, the HITRAN database, atmospheric refractivity, molecular Rayleigh scattering, particle distribution functions, Mie scattering and anomalous diffraction approximation. This background is applied to atmospheric transmittance, path radiance, imaging systems and path fluctuations with examples from field measurements. These topics are further reinforced by practical examples on atmospheric optics whenever possible. A set of contemporary references is provided.
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