LASER Detection &

Applications

Alexander Pantazis

SQN LDR / HAF CRC Parnis

(MSc, PhD Candidate)

01-06-17

Alumni Defence Conference

Purpose

Purpose of this presentation is to inform

about the Laser Detection and its

applications especially in Defense and

Safety industry.

Already usage of laser applications are

mentioned and proposals are been given for

consideration and great need for survey !

2

LIDAR - LADAR

LIDAR – LIght Detection And Ranging

Main usage at atmospheric and meteorological

applications as well as Ranging meters, low

observable obstacles etc.

LADAR – LAser Detection And Ranging

Main usage at bottom – slant terrain masking

Main difference between LIDAR and LADAR is

in USAGE of the Laser application.

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Types of Laser

Based on the mode of operation

(i) Pulsed Laser systems

(ii) Q-switched systems

(iii) Continuous wave Laser systems

Based on the mechanism in which Population Inversion is achieved

(i) Three level lasers

(ii) Four level lasers

Based on state of active medium used

(i) Gas Laser

(ii) Solid state Laser

(iii) Semiconductor Laser

(iv) Tunable dye Laser

(v) Chemical Laser

Free Electron Lasers (recently developed) 4

Typical LIDAR Equation

SECTIONS

Atmospheric/ Wind LIDAR – LIDAR Network

Space LIDAR – LADAR

LIDARS as MAWS

LIDARS as ALMDS

LADAR and Naval applications

LIDARS as LOAM

LIDARS as SLAL / Strike / Recce

LIDAR and Biological warfare

LIDARS and Detection of Low Observable Targets

LIDARS + RADARS working in synergy

Free Electron Lasers

LIDARS & Simultaneously Detection + Communication 6

Atmospheric LIDAR• Real-time aerosol layers monitoring (0.5-15 km) [ash, desert,

biomass, radioactive, industrial, warfare particles, etc.]

• Real-time cloud layers monitoring (0.5-20 km)

• Real-time Planetary Boundary Layer Monitoring (Meteorological

parameters)

• Long-range transport studies (aerosols, ozone, water vapor)

• Tropospheric ozone profiling (0.5-6 km)

• Water vapor profiling (0.5-8/10 km)

• Fog/visibility lidar detectors

• Industrial emissions (aerosol) monitoring and diffusion studies

(profiling)

• Measurement of aerosol properties (profiling)

• Retrieval of aerosol microphysical properties (profiling)

• Retrieval of aerosol chemical properties (profiling) – Personnel

Health

• Characterization of aerosol particles based on their

optical/microphysical properties 7

Atmospheric LIDAR

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0 100 200 300 400

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0 2 4 6 8 10

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0 50 100 150

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21 JULY 2009, 01:00:20- 02:42:50 UTC

EXTICNCTION COEFFICIENT

[Mm-1]

Heig

ht a.s.l. [km

]

BACKSCATTER COEFFICIENT

[Mm-1sr

-1]

1064nm

532nm

355nm

LIDAR RATIO

[sr]

ANGSTROEM EXPONENT

Ab532/b1064

Ab355/b532

Aa355/a532

1

2

3

4

0 2 4 0 1 2 0.4 0.6 0.8 1.0

bscat

[Mm-1 sr

-1]

AL

TIT

UD

E A

.S.L

. [k

m]

Aa355/a532

5 7 9

0.0 0.5 1.0

reff

[μm]

1.4 1.6 1.8

complex RI

0.01 0.03

Fine mode

Total

Im Part

Real Part

WVMR

Angrstroem Exp

SSA

21 JULY 2009, 01:00:20- 02:42:50 UTC

Vertical profiles of the aerosol

Optical + microphysical properties

Atmospheric LIDARWater vapor Raman lidar measurements

Atmospheric LIDAR

LIDAR και Ασφάλεια Πτήσεων

3D Lidar application at Braunschweig (Germany) at 355 nm (© Raymetrics S.A.).

3D Lidar at 355 nm

(© Raymetrics

S.A.).

Forward Scatterometer Transmissiometer Scintillometer11

Wind Lidar ApplicationsReal time identification οf disturbances/vertical

wings Contribution to Flight Safety

3D scanning wind

lidar (Wind shear

detection)

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Lidar Applications (aerosol particles real-time identification):

LIDAR Network

• Unique tool for real-time 3D identification of aerosol layers [ash, desert,

biomass, radioactive, industrial, warfare particles, etc.]

Provides EARLY warning on airplanes ! (e.g. AVOID system) 13

Space LIDARS - LADARS

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LIDARS as MAWS for SHIPS

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LIDARS as ALMS

LADARS & NAVAL Detection

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LIDARS as LOAM

LOAM19

LIDARS as SLAL

Strike LIDAR

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Recce LADAR

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LIDAR and Biological Warfare(NATO RECOMMENDATIONS 2010)

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LIDAR and Biological Warfare(NATO RECOMMENDATIONS 2010)

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Lidar Detection of Low observable Targets 3D scanning Lidar for low observable targets

LIDAR + Radar for Aircrafts

Both Acquisition & Targeting working in

Synergy for Low Observable Targets (LOT)

Possible view 26

Free Electron Laser as Laser Gun

LIDARS – Detection + Communication

Photonic systems promise:

• Higher precision

• Less noise

• Higher bandwidth

• Greater flexibility

• Smaller antennas

Radars Vs Laser “radars”

Radars Vs Laser “radars”

SECTIONS

Atmospheric/ Wind LIDAR – LIDAR Network

Space LIDAR – LADAR

LIDARS as MAWS

LIDARS as ALMDS

LADAR and Naval applications

LIDARS as LOAM

LIDARS as SLAL / Strike / Recce

LIDAR and Biological warfare

LIDARS and Detection of Low Observable Targets

LIDARS + RADARS working in synergy

Free Electron Lasers

LIDARS & Simultaneously Detection + Communication 29

Selected Internet sites

• http://www.physics.ntua.gr/~papayannis/

• http://www.raymetrics.com/

• https://www.google.ch/patents/US5850285

• http://www.northropgrumman.com/Capabilities/

AirborneLaserMineDetectionSystem/Pages/def

ault.aspx

• http://usa.selex-

comms.com/internet/?d=1&open0=5338&open1

=5350&section=COMM&showentry=17089

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Selected Internet sites

• http://waset.org/publications/9997995/lidar-

obstacle-warning-and-avoidance-system-for-

unmanned-aircraft

• http://www.ausairpower.net/ASPC-LIDAR-

Mirror.html

• https://www.yumpu.com/en/document/view/867

1791/rto-tr-set-098-ftp-directory-listing-nato

• http://www.industrytap.com/40-million-laser-

weapon-system-installed-on-a-destroyer/6731

• http://www.bbc.com/news/science-environment-

26665305

31

LASER Detection & Applications

Acropolis

Site !

(by Airborne LADAR)

Alexander Pantazis

SQN LDR / HAF CRC Parnis

(MSc, PhD Candidate)

01-06-17

Alumni Defense Conference

Thank you all for attending!