02_Sergio Nicoletti

MINIATURIZED OPTICAL SENSORS
FOR AIR QUALITY CONTROL AND
EMISSIONS MONITORING
Sergio Nicoletti – Business Development – Optical Sensing
Leti Photonics Workshop 2016 – San Francisco - February 16th, 2016
Why Optical Sensing?
• Allows us to identify, track and measure chemical
concentration down to trace levels
Why Mid-IR?
• Clear and intense “fingerprints” of molecules
When laser source is used…
• Enhanced Real-time monitoring
WORKING IN THE MID-IR RANGE
TLD
Mid IR Solid state Sources
Absorption strength (a.u.)
BB Sources
1
TNT
CO2
0.1
NH3
CH4
H2CO
H2O2
CO
SF6
0.01
NH3
SO2 NO2
CO2
NO
H2CO
0.001
CH4
N2O
03
Ethylene
SO3
CO2
2
Acetone
C6H6
3
4
5
6
7
Wavelength (µm)
8
9
10
11
Connected Personalized Environment/Pollution Station
Local &
Personal
Services &
Values
www.elichens.com
mailto:[email protected]
NDIR SENSING: SMALL, LOW-COST,
LOW-POWER
µsource – µsensor
co-integration
0.5x0.5cm²
Multi-gas
Source – Sensor
co-integration
Emission shaping
2015
Wafer Level packaged source
2013
Fully miniaturized
sensor
2011
CHEMICAL SENSING: AN EVOLVING MARKET
Industrial Applications:
Process control, emission monitoring, safety and security at work
GC:
Gas Chromatography
FTIR:
Fourier Transform InfraRed
TLDS: Tunable Laser Diode Spectroscopy
MARKET VALUE:
~ 2 BILLION $ - CAGR ~ 5%/YEAR
Sergio Nicoletti | Leti Days 2015
MIMOVE OPTICAL SENSING AT CHIP LEVEL
• A monolithic array of QCL
lasers emitting each at a
different wavelength
• A MIR-PIC fab platform
• A photonic integrated circuit
combining the different
outputs
• An ASIC switch to power
sequentially each source
MOVE OPTICAL SENSING AT CHIP LEVEL
Miniaturized photo-acoustic sensor & detail of
the microphone beam
LOD < 0.1 ppm for CH4, CO2 and CO
KEY DIFFERENTIATORS
Compact and portable
Real-time
Selective, sensitive
and multispecies
Flexible
WHAT’S NEXT
Miniaturization to add novel functionalities at chip level
• Fully integrated optical lab-on-chip/lab-on-packaging
• Enhanced Real-Time Multi-Gas monitoring
Extend the range of addressable applications
• Optical detection of particles
• Optical Detection of Movement
Open design and prototyping to external partnerships
• From UV to MIR
Sergio Nicoletti
Business Development and Project Management
Optical Sensor Devices Group
Optics & Photonics Department
[email protected]
Leti, technology research institute
Commissariat à l’énergie atomique et aux énergies alternatives
Minatec Campus | 17 rue des Martyrs | 38054 Grenoble Cedex | France
www.leti.fr