Dr. François Babin Profile

Dr. François Babin

at INO

SPIE Involvement:

Author

Publications (23)

PROCEEDINGS ARTICLE | May 3, 2017

UV LED based gas correlation spectrometer of aromatics for the standoff detection of industrials spills and emissions

Proc. SPIE. 10215, Advanced Environmental, Chemical, and Biological Sensing Technologies XIV

KEYWORDS: Optical filters, Light emitting diodes, Standoff detection, Sensors, Spectroscopy, Ultraviolet radiation, Fluorescence spectroscopy, Lamps, Ultraviolet light emitting diodes, Sensor performance, UV optics, Absorption

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PROCEEDINGS ARTICLE | May 12, 2016

Airborne pipeline leak detection: UV or IR?

Proc. SPIE. 9824, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII

KEYWORDS: Methane, LIDAR, Ultraviolet radiation, Luminescence, Molecules, Reflectivity, Raman spectroscopy, Pulsed laser operation, Liquids, Absorption

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PROCEEDINGS ARTICLE | September 17, 2013

Enhancements to INO's broadband SWIR/MWIR spectroscopic lidar

Proc. SPIE. 8872, Lidar Remote Sensing for Environmental Monitoring XIV

KEYWORDS: Optical filters, Mirrors, Spectrographs, Tunable lasers, Optical amplifiers, Polarization, LIDAR, Spectroscopy, Absorption, Bandpass filters

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PROCEEDINGS ARTICLE | November 19, 2012

An all-optronic synthetic aperture lidar

Proc. SPIE. 8542, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VI

KEYWORDS: Imaging systems, LIDAR, Sensors, Synthetic aperture radar, Image processing, Image restoration, Image resolution, Spatial light modulators, Optoelectronics, Neodymium

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PROCEEDINGS ARTICLE | November 1, 2012

Broadband spectroscopic lidar for SWIR/MWIR detection of gaseous pollutants in air

Proc. SPIE. 8534, Remote Sensing of Clouds and the Atmosphere XVII; and Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VIII

KEYWORDS: Telescopes, Spectrographs, Cameras, LIDAR, Sensors, Spectroscopy, Molecules, Picosecond phenomena, Indium oxide, Absorption

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PROCEEDINGS ARTICLE | October 15, 2012

Latest developments in active remote sensing at INO

Proc. SPIE. 8515, Imaging Spectrometry XVII

KEYWORDS: Cameras, LIDAR, Sensors, Spectroscopy, Ultraviolet radiation, Luminescence, Raman spectroscopy, Head, Indium oxide, Absorption

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Remote sensing or stand-off detection using controlled light sources is a well known and often used technique for atmospheric and surface spatial mapping. Today, ground based, vehicle-borne and airborne systems are able to cover large areas with high accuracy and good reliability. This kind of detection based on LiDAR (Light Detection and Ranging) or active Differential Optical Absorption Spectroscopy (DOAS) technologies, measures optical responses from controlled illumination of targets. Properties that can be recorded include volume back-scattering, surface reflectivity, molecular absorption, induced fluorescence and Raman scattering. The various elastic and inelastic backscattering responses allow the identification or characterization of content of the target volumes or surfaces. INO has developed instrumentations to measure distance to solid targets and monitor particles suspended in the air or in water in real time. Our full waveform LiDAR system is designed for use in numerous applications in environmental or process monitoring such as dust detection systems, aerosol (pesticide) drift monitoring, liquid level sensing or underwater bathymetric LiDARs. Our gated imaging developments are used as aids in visibility enhancement or in remote sensing spectroscopy. Furthermore, when coupled with a spectrograph having a large number of channels, the technique becomes active multispectral/hyperspectral detection or imaging allowing measurement of ultra-violet laser induced fluorescence (UV LIF), time resolved fluorescence (in the ns to ms range) as well as gated Raman spectroscopy. These latter techniques make possible the stand-off detection of bio-aerosols, drugs, explosives as well as the identification of mineral content for geological survey. This paper reviews the latest technology developments in active remote sensing at INO and presents on-going projects conducted to address future applications in environmental monitoring.

PROCEEDINGS ARTICLE | May 5, 2012

Use of a spectroscopic lidar for standoff explosives detection through Raman spectra

Proc. SPIE. 8358, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII

KEYWORDS: Standoff detection, Explosives detection, LIDAR, Spectroscopy, Luminescence, Photons, Raman spectroscopy, Explosives, Pulsed laser operation, Prototyping

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PROCEEDINGS ARTICLE | May 5, 2012

Proposal for a standoff bio-agent detection SWIR/MWIR differential scattering lidar

Proc. SPIE. 8358, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIII

KEYWORDS: Mirrors, Standoff detection, Backscatter, Scattering, LIDAR, Spectroscopy, Ultraviolet radiation, Laser scattering, Clouds, Laser induced fluorescence

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PROCEEDINGS ARTICLE | October 13, 2011

BioSense/SR-BioSpectra demonstrations of wide area/early warning for bioaerosol threats: program description and early test and evaluation results

Proc. SPIE. 8189, Optics and Photonics for Counterterrorism and Crime Fighting VII; Optical Materials in Defence Systems Technology VIII; and Quantum-Physics-based Information Security

KEYWORDS: Defense and security, Scattering, LIDAR, Sensors, Aerosols, Calibration, Clouds, Laser induced fluorescence, Surveillance, Atmospheric modeling

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PROCEEDINGS ARTICLE | May 13, 2011

Standoff detection of explosives: a challenging approach for optical technologies

Proc. SPIE. 8031, Micro- and Nanotechnology Sensors, Systems, and Applications III

KEYWORDS: Microscopes, FT-IR spectroscopy, Standoff detection, Spectroscopy, Particles, Luminescence, Raman spectroscopy, Laser induced breakdown spectroscopy, Raman scattering, Explosives

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PROCEEDINGS ARTICLE | May 5, 2010

Short-range lidar for bioagent detection and classification

Proc. SPIE. 7665, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XI

KEYWORDS: LIDAR, Sensors, Aerosols, Databases, Luminescence, Surveillance, Data acquisition, Head, Pulsed laser operation, Prototyping

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PROCEEDINGS ARTICLE | April 22, 2010

Active 3D camera design for target capture on Mars orbit

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

KEYWORDS: Sun, Cameras, Sensors, Photons, Semiconductor lasers, Stereoscopic cameras, Mars, Pulsed laser operation, Ranging, Fiber optic illuminators

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PROCEEDINGS ARTICLE | October 7, 2009

Hyperspectral fluorescence lifetime lidar for geological exploration

Proc. SPIE. 7478, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology IX

KEYWORDS: Spectrographs, Minerals, LIDAR, Sensors, Ultraviolet radiation, Luminescence, Receivers, Laser induced fluorescence, Distance measurement, Fluorite

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PROCEEDINGS ARTICLE | October 18, 2007

Novel applications of an affordable short-range digital lidar

Proc. SPIE. 6681, Lidar Remote Sensing for Environmental Monitoring VIII

KEYWORDS: Target detection, Signal to noise ratio, Visibility through fog, Fiber optic gyroscopes, LIDAR, Field programmable gate arrays, Clouds, Solids, Prototyping, Visibility

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PROCEEDINGS ARTICLE | May 19, 2006

A hybrid 3D sensor (NEPTEC TriDAR) for object tracking and inspection

Proc. SPIE. 6214, Laser Radar Technology and Applications XI

KEYWORDS: Optical filters, Mirrors, LIDAR, Sensors, Inspection, Stereoscopic cameras, Computer aided design, Space operations, Pulsed laser operation, Prototyping

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PROCEEDINGS ARTICLE | February 17, 2003

70-nm tunable single-longitudinal-mode erbium-doped fiber laser

Proc. SPIE. 4833, Applications of Photonic Technology 5

KEYWORDS: Optical filters, Tunable lasers, L band, Linear filtering, Fiber lasers, Spatial light modulators, Tunable filters, Electronic filtering, Absorption filters, Bandpass filters

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PROCEEDINGS ARTICLE | February 17, 2003

Passively mode-locked stretched-pulse erbium-doped fiber ring laser with a regenerative feedback

Proc. SPIE. 4833, Applications of Photonic Technology 5

KEYWORDS: Semiconductors, Oscillators, Phase modulation, Polarization, Dispersion, Mode locking, Modulators, Fiber lasers, Picosecond phenomena, Pulsed laser operation

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PROCEEDINGS ARTICLE | August 29, 2002

Innovative implementation of the phase-shift method for field measurement of chromatic dispersion

Proc. SPIE. 4909, Network Design and Management

KEYWORDS: Optical filters, Modulation, Calibration, Dispersion, Receivers, Phase shift keying, Tunable filters, Phase measurement, Electronic filtering, Signal detection

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PROCEEDINGS ARTICLE | August 23, 2002

Optical sampling-step and effective resolution bandwidth: a fundamental aspect of component testing

Proc. SPIE. 4906, Optical Components and Transmission Systems

KEYWORDS: Optical filters, Mirrors, Sensors, Signal attenuation, Fourier transforms, Linear filtering, Optical testing, Signal processing, Terahertz radiation, Picosecond phenomena

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PROCEEDINGS ARTICLE | December 15, 2000

Characterization of the coherence properties of a multilongitudinal-mode erbium-doped fiber ring laser using a Michelson interferometer

Proc. SPIE. 4087, Applications of Photonic Technology 4

KEYWORDS: Optical filters, Tunable lasers, Polarization, Interferometers, Fiber lasers, Semiconductor lasers, Modes of laser operation, Erbium lasers, Visibility, Michelson interferometers

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