Keyphrases
Cesium
100%
Diode Laser
83%
Comb Laser
60%
Two-photon Transition
56%
Iodine
53%
Hyperfine Transition
48%
Absolute Frequency
45%
Sapphire
44%
Two-photon Spectroscopy
41%
He-Ne Laser
37%
Intra-cavity
32%
133Cs
27%
High-resolution
25%
Molecular Iodine
20%
Frequency Reference
20%
Frequency Comb Spectroscopy
18%
Absolute Frequency Measurement
18%
Femtosecond
18%
Sapphire Laser
18%
Two-photon
17%
Laser-based
17%
Frequency Doubling
16%
Signal-to-noise Ratio
15%
Frequency Standard
15%
Wavelength Standards
12%
Laser Power
12%
Cesium Atoms
12%
Hyperfine Coupling Constant
11%
Helium
11%
Laser Frequency
11%
Lamb-dip
11%
Frequency Stabilization
10%
22Ne
10%
20Ne
10%
Isotope Shift
10%
Frequency Stability
10%
Frequency Estimation
10%
Frequency Accuracy
10%
Laser Stabilization
9%
Optical Frequencies
9%
Length Standard
9%
Dissociation Threshold
9%
Reelability
9%
Hyperfine Structure
9%
Error Sources
8%
Wavelength Range
7%
Sub-Doppler
6%
Fiber Laser
6%
Narrow Linewidth
6%
Quantum Interference
6%
Physics
Caesium
97%
Semiconductor Laser
97%
High Resolution
34%
Signal-to-Noise Ratio
32%
Linewidth
20%
Frequency Standard
16%
Harmonics
15%
Isotope Effect
13%
Frequency Measurement
11%
Atmospherics
11%
Laser Cavity
9%
Fiber Laser
9%
Frequency Modulation
9%
Hyperfine Structure
8%
Helium Atom
6%
Planetary Atmosphere
6%
Frequency Shift
6%
Optical Communication
6%
