Engineering & Materials Science
Photoacoustic effect
100%
Semiconductor lasers
93%
Laser spectroscopy
82%
Photoacoustic spectroscopy
78%
Gases
72%
Spectroscopy
65%
Wavelength
58%
Modulation
57%
Engines
47%
Methane
45%
Tomography
41%
Distributed feedback lasers
39%
Exhaust systems (engine)
37%
Infrared radiation
36%
Solid oxide fuel cells (SOFC)
35%
Acetylene
33%
Imaging techniques
30%
Lasers
29%
Water vapor
28%
Amplitude modulation
25%
Recovery
25%
Chemical sensors
24%
Soot
23%
Fiber amplifiers
22%
Gas turbines
20%
Resonators
19%
Sensors
19%
Calibration
18%
Light sources
18%
Fiber lasers
18%
Carbon dioxide
18%
Quantum cascade lasers
17%
Temperature
17%
Jet engines
16%
Data acquisition
16%
Bypass ratio
15%
Process control
15%
Imaging systems
15%
Absorption spectroscopy
14%
Acoustics
13%
Thulium
13%
Light absorption
12%
Turbines
12%
Laser resonators
12%
Spectrometers
11%
Testing
11%
Laser applications
11%
Air cleaners
10%
Optical fibers
10%
Physics & Astronomy
laser spectroscopy
74%
gases
63%
diodes
49%
modulation
47%
methane
43%
wavelengths
36%
solid oxide fuel cells
35%
engines
33%
photoacoustic spectroscopy
30%
spectroscopy
29%
gas composition
27%
plumes
26%
water vapor
24%
tomography
23%
line shape
22%
sensors
21%
recovery
21%
semiconductor lasers
21%
elimination
20%
lasers
20%
laminar flames
18%
flames
17%
soot
17%
microphones
16%
data acquisition
15%
cells
15%
jet engines
15%
harmonics
13%
distributed feedback lasers
13%
carbon dioxide
12%
amplifiers
12%
quantum cascade lasers
10%
output
10%
methodology
10%
optical fibers
10%
performance
10%
gas lasers
10%
temperature
10%
projection
9%
gas temperature
9%
cavities
9%
characterization
8%
acetylene
8%
microelectromechanical systems
8%
decomposition
8%
frequency modulation
7%
delay lines
7%
continuous radiation
7%
fiber lasers
7%
fibers
7%