Physics & Astronomy
repeaters
72%
rare earth elements
70%
doped crystals
63%
crystals
62%
nanoparticles
62%
photons
49%
ions
47%
neodymium
45%
classifying
44%
magnons
44%
yttrium
42%
lasers
40%
quantum communication
38%
gravitational waves
38%
micrometers
36%
gravitation
29%
echoes
28%
life (durability)
27%
cross relaxation
25%
physics
25%
cavities
24%
probes
23%
solid state
23%
laser power beaming
23%
characterization
22%
polarization
21%
silicon dioxide
20%
etching
20%
field strength
17%
multiplexing
17%
excitation
16%
interactions
15%
automatic frequency control
15%
glass
15%
radiation pressure
15%
atomic excitations
14%
actuation
13%
signal to noise ratios
12%
impedance matching
12%
versatility
11%
surface roughness
11%
lithography
11%
viability
10%
magnetic fields
10%
communication
10%
retrieval
10%
spin-spin coupling
9%
fabrication
8%
resources
7%
pulses
7%
Engineering & Materials Science
Telecommunication repeaters
100%
Nanoparticles
91%
Quantum optics
80%
Lasers
70%
Quantum communication
64%
Gravity waves
60%
Neodymium
58%
Yttrium
57%
Quantum cryptography
56%
Physics
51%
Crystals
47%
Photons
46%
Sorting
38%
Relaxation
37%
Fused silica
36%
Data storage equipment
36%
Gravitation
35%
Synchronization
31%
Laser power transmission
26%
Ions
23%
Rare earths
22%
Glass
21%
Magnetic fields
20%
Optical fibers
20%
Communication
19%
Reactive ion etching
17%
Polydimethylsiloxane
16%
Spin-lattice relaxation
15%
Lithography
14%
Etching
14%
Microfluidics
14%
Fibers
13%
Surface roughness
10%
Radiation
10%
Atoms
10%
Fabrication
9%
Temperature
9%
Doping (additives)
8%
Defects
6%
Tissue
6%
Imaging techniques
6%
Chemistry
Gravitational Wave
84%
New Physics
70%
Electron Spin
66%
Standard Model
61%
Gravity
45%
Nanoparticle
39%
Photon
38%
Communication
36%
Dielectric Material
35%
Force
26%
Molecular Cluster
25%
Fiber
25%
Strength
25%
Probe
24%
Magnetic Field
18%
Time
17%
Lanthanoid Atom
14%
Spin-Lattice Relaxation
11%
Filtration
8%