Prof. Hans D. Hallen Profile

Prof. Hans D. Hallen

Professor at North Carolina State Univ

SPIE Involvement:

Conference Program Committee | Author

Publications (21)

PROCEEDINGS ARTICLE | May 10, 2018

Lidar detection of small aerosol size distribution

Proc. SPIE. 10636, Laser Radar Technology and Applications XXIII

KEYWORDS: Backscatter, Scattering, LIDAR, Aerosols, Particles, Raman spectroscopy, Mie scattering, Raman scattering, Atmospheric particles, Atmospheric modeling

Read Abstract

PROCEEDINGS ARTICLE | May 5, 2017

Signatures of dynamical processes in Raman lidar profiles of the atmosphere

Proc. SPIE. 10191, Laser Radar Technology and Applications XXII

KEYWORDS: LIDAR, Sensors, Aerosols, Water, Interfaces, Raman spectroscopy, Ocean optics, Turbulence, Convection, Oceanography, Troposphere, Atmospheric propagation, Wind measurement, Atmospheric optics, Temperature metrology

Read Abstract

PROCEEDINGS ARTICLE | May 13, 2016

Atmospheric absorption versus deep ultraviolet (pre-)resonance in Raman lidar measurements

Proc. SPIE. 9832, Laser Radar Technology and Applications XXI

KEYWORDS: Optical parametric oscillators, Deep ultraviolet, LIDAR, Molecules, Clouds, Raman spectroscopy, Ozone, Resonance enhancement, Liquids, Absorption

Read Abstract

PROCEEDINGS ARTICLE | September 1, 2015

Lidar investigations of atmospheric dynamics

Proc. SPIE. 9612, Lidar Remote Sensing for Environmental Monitoring XV

KEYWORDS: Scattering, LIDAR, Aerosols, Molecules, Clouds, Raman spectroscopy, Convection, Atmospheric particles, Atmospheric optics, Temperature metrology

Read Abstract

PROCEEDINGS ARTICLE | August 26, 2015

UV resonance Raman signatures of phonon-allowed absorptions and phonon-driven bubble formation

Proc. SPIE. 9584, Ultrafast Nonlinear Imaging and Spectroscopy III

KEYWORDS: Cameras, Calibration, Spectroscopy, Ultraviolet radiation, Molecules, Laser scattering, Raman spectroscopy, Phonons, Liquids, Absorption

Read Abstract

PROCEEDINGS ARTICLE | September 5, 2014

Time and neighbor interaction in resonance Raman spectroscopy

Proc. SPIE. 9198, Ultrafast Nonlinear Imaging and Spectroscopy II

KEYWORDS: Plasmons, Metals, Molecules, Raman spectroscopy, Aluminum, Phonons, Antennas, Resonance enhancement, Liquids, Absorption

Read Abstract

PROCEEDINGS ARTICLE | June 9, 2014

Remote aerosol species-identification using IR scattering spectroscopy

Proc. SPIE. 9080, Laser Radar Technology and Applications XIX; and Atmospheric Propagation XI

KEYWORDS: Refractive index, Scattering, Aerosols, Particles, Dielectrics, Light scattering, Infrared spectroscopy, Mie scattering, Chemical analysis, Atmospheric particles

Read Abstract

PROCEEDINGS ARTICLE | June 9, 2014

Laser remote sensing of species concentrations and dynamical processes

Proc. SPIE. 9080, Laser Radar Technology and Applications XIX; and Atmospheric Propagation XI

KEYWORDS: Tunable lasers, LIDAR, Aerosols, Water, Molecules, Clouds, Raman spectroscopy, Raman scattering, Atmospheric particles, Absorption

Read Abstract

PROCEEDINGS ARTICLE | September 28, 2013

Coherence in UV resonance Raman spectroscopy of liquid benzene and toluene, but not ice

Proc. SPIE. 8845, Ultrafast Imaging and Spectroscopy

KEYWORDS: Optical parametric oscillators, Data modeling, Ultraviolet radiation, Molecules, Raman spectroscopy, Phonons, Raman scattering, Resonance enhancement, Liquids, Absorption

Read Abstract

PROCEEDINGS ARTICLE | May 28, 2013

Optical extinction dependence on wavelength and size distribution of airborne dust

Proc. SPIE. 8731, Laser Radar Technology and Applications XVIII

KEYWORDS: Visible radiation, Scattering, Aerosols, Particles, Laser scattering, Multiple scattering, Atmospheric propagation, Atmospheric particles, Atmospheric optics, Absorption

Read Abstract

PROCEEDINGS ARTICLE | May 20, 2013

Understanding lidar returns from complex dust mixtures

Proc. SPIE. 8731, Laser Radar Technology and Applications XVIII

KEYWORDS: Ellipsometry, Refractive index, Silica, Reflection, Scattering, Particles, Dielectrics, Refraction, Atmospheric particles, Absorption

Read Abstract

PROCEEDINGS ARTICLE | May 20, 2013

Multistatic lidar measurements of non-spherical aerosols

Proc. SPIE. 8731, Laser Radar Technology and Applications XVIII

KEYWORDS: Optical spheres, Polarization, Scattering, LIDAR, Aerosols, Particles, Light scattering, Scanning electron microscopy, Mie scattering, Atmospheric particles

Read Abstract

PROCEEDINGS ARTICLE | May 20, 2013

Using a laser aureole to study aerosols

Proc. SPIE. 8731, Laser Radar Technology and Applications XVIII

KEYWORDS: Minerals, Optical spheres, Silica, Scattering, Aerosols, Particles, Laser scattering, Refraction, Mie scattering, Atmospheric particles

Read Abstract

PROCEEDINGS ARTICLE | April 29, 2010

Optical remote sensing techniques characterize the properties of atmospheric aerosols

Proc. SPIE. 7684, Laser Radar Technology and Applications XV

KEYWORDS: Refractive index, Polarization, Scattering, LIDAR, Aerosols, Laser scattering, Raman spectroscopy, Raman scattering, Atmospheric particles, Atmospheric optics

Read Abstract

PROCEEDINGS ARTICLE | April 16, 2008

Resonance Raman measurements utilizing a deep UV source

Proc. SPIE. 6950, Laser Radar Technology and Applications XIII

KEYWORDS: Diamond, Optical parametric oscillators, Scattering, Spectroscopy, Ultraviolet radiation, Laser scattering, Raman spectroscopy, Raman scattering, Resonance enhancement, Absorption

Read Abstract

PROCEEDINGS ARTICLE | June 20, 2002

Interferometric method to characterize thermal elongation of near-field optics probes

Proc. SPIE. 4777, Interferometry XI: Techniques and Analysis

KEYWORDS: Thermography, Mirrors, Fabry–Perot interferometers, Polarization, Metals, Interferometry, Near field scanning optical microscopy, Near field, Feedback control, Near field optics

Read Abstract

PROCEEDINGS ARTICLE | October 13, 1998

Raman spectroscopy: probing the border between near-field and far-field spectroscopy

Proc. SPIE. 3467, Far- and Near-Field Optics: Physics and Information Processing

KEYWORDS: Ferroelectric materials, Spectroscopy, Physics, Raman spectroscopy, Micro raman spectroscopy, Near field scanning optical microscopy, Near field, Rayleigh scattering, Raman scattering, Spectroscopes

Read Abstract

PROCEEDINGS ARTICLE | September 6, 1995

Thermal/temporal response of the NSOM probe/sample system

Proc. SPIE. 2535, Near-Field Optics

KEYWORDS: Thermography, Infrared imaging, Visible radiation, Modulation, Silicon, Near field scanning optical microscopy, Thermal effects, Infrared radiation, Fiber coatings

Read Abstract

PROCEEDINGS ARTICLE | March 30, 1995

Time-resolved contrast in near-field scanning optical microscopy of semiconductors

Proc. SPIE. 2384, Scanning Probe Microscopies III

KEYWORDS: Infrared detectors, Semiconductors, Infrared imaging, Visible radiation, Silicon, Near field scanning optical microscopy, Infrared radiation, Semiconducting wafers, Signal detection, Near field optics

Read Abstract

PROCEEDINGS ARTICLE | October 3, 1993

Ballistic electron emission microscopy: from electron transport physics to nanoscale materials science

Proc. SPIE. 10310, Technology of Proximal Probe Lithography

PROCEEDINGS ARTICLE | June 4, 1993

High-resolution scanning Hall probe microscopy

Proc. SPIE. 1855, Scanning Probe Microscopies II

KEYWORDS: Microscopes, Data modeling, Metals, Microscopy, Crystals, Magnetism, Superconductors, Scanning probe microscopy, Spatial resolution, Temperature metrology

Read Abstract