O
One-photon excitation,244.See also
Multiphoton microscopy
Optical albedo, 163
Optical breakdown, 180
Optical circulator, 138
Optical coherence, 45
Optical coherence elastography, 303
Optical coherence tomography, 284
axial resolution, 290
Fourier domain OCT, 285
lateral resolution, 292
spectral domain OCT, 286
wwept source OCT, 286
time domain OCT, 285
Optical coupler, 137
Optical density,150. See alsoAbsorption
Opticalfiber bundles, 81
coherentfiber bundle, 81
orderedfiber bundle, 81
Opticalfiber laser,110. See alsoLasers
Opticalfiber nanoprobes, 218
Opticalfiber probes, 192
DCF single-fiber probe, 194
example single-fiber probe, 193
fiber tip geometries, 198
generic probe system, 195
multiple-fiber probes, 196
Opticalfibers, 52
bend-insensitive, 65
bend-tolerant, 65
conventional, 52
conventional solid-core, 66
cut off for graded-indexfibers, 64
graded-index, 55 , 62
graded-index numerical aperture, 63
index difference, 55
major categories, 53
mechanical properties, 65
multimode, 54
optical power-handling capability, 66
single-mode, 54
solarization, 69
step-index, 55
UV-induced darkening losses, 69
Opticalfilters, 134
bandpassfilters, 134
beam splitter, 136
dichroic edgefilter, 194
dichroic mirror, 136
edgefilters, 134
longpassfilter, 134
shortpassfilters, 134
thinfilmfilters, 134
Optical intensity,28.See alsoIntensity
Optical manipulation, 316
Optical power, 90
Optical sensors, 201
microbending sensor, 206
opticalfiber pressure sensor, 204
Optical trapping, 316
beam waist, 319
Gaussian intensity profile, 318
gradient force, 317
scattering force, 318
trap stiffness, 319
trapping efficiency, 320
Optical tweezers, 316
Optogenetics, 326
Organelles,18.See alsoEukaryotic cells
Organs, 20P
Particle theory, 25
Phase, 26
Phosphorescence, 255
Photoablation, 177
photoablation depth, 179
photoablation threshold, 179
Photoacoustic tomography, 304
acoustic probe, 305
measurement method, 305
photoacoustic wave, 304
stress confinement, 306
stress relaxation time, 306
thermal confinement, 305
thermal diffusivity, 305
thermal relaxation time, 305
Photobiomodulation, 168
Photobleaching, 242
Photocarriers, 117
Photochemical interaction, 171
Photocurrent,118.See alsoPhotodetector
primary photocurrent,120.See also
Photodetector
Photodetector, 116
depletion region, 116
i region, 116
intrinsic region, 116
pin photodetector, 116
Photodetector receiver, 125
Photodisruption, 181
cavitation, 181
jetting, 181
plasma shielding, 181
Photodissociation, 177
Photodynamic therapy, 171
Photomultiplier tube, 132Index 343