Understanding Radiance, Irradiance and Radiant Flux
... off in proportion to the distance squared from the source, since the total power is constant and it is spread over an area that increases with the distance squared from the radiation source. To compare the irradiance of different sources, one must take into account the distance from the source. A 50 ...
... off in proportion to the distance squared from the source, since the total power is constant and it is spread over an area that increases with the distance squared from the radiation source. To compare the irradiance of different sources, one must take into account the distance from the source. A 50 ...
optical properties of skin, subcutaneous, and muscle tissues
... apparent direction of photons undergoing single scattering, which may be due to the presence of large cellular organelles (mitochondria, lysosomes, Golgi apparatus, etc.).14,712,19 When the scattering medium is illuminated by unpolarized light and/or only the intensity of multiple scattered light ...
... apparent direction of photons undergoing single scattering, which may be due to the presence of large cellular organelles (mitochondria, lysosomes, Golgi apparatus, etc.).14,712,19 When the scattering medium is illuminated by unpolarized light and/or only the intensity of multiple scattered light ...
Transmission of 1550nm 10Gb/s directly modulated signal over
... Electro-absorption modulator integrated distributed feedback lasers (EA-DFBs) are another possible solution as 10Gb/s 1.55pm sources [4]. Commercially available EA-DFBs are specified for a dispersion tolerance of 14401600ps/nm (about 8Okm of standard fiber). However, their output power is small (-5- ...
... Electro-absorption modulator integrated distributed feedback lasers (EA-DFBs) are another possible solution as 10Gb/s 1.55pm sources [4]. Commercially available EA-DFBs are specified for a dispersion tolerance of 14401600ps/nm (about 8Okm of standard fiber). However, their output power is small (-5- ...
Spectral phase conjugation via temporal imaging
... φ11" = β11(2) L11 [38]. This situation is analogous to the spatial case where an object is placed a focal length away from a lens and the phase modulation on the transverse beam profile is cancelled by the lens. Furthermore, the residual chirp on the generated idler is compensated when the time-lens ...
... φ11" = β11(2) L11 [38]. This situation is analogous to the spatial case where an object is placed a focal length away from a lens and the phase modulation on the transverse beam profile is cancelled by the lens. Furthermore, the residual chirp on the generated idler is compensated when the time-lens ...
Liquid-crystal photonic applications
... with respect to each other is present. The chiral nematic phase is very similar as for achiral mesogens, but the asymmetry of the molecules causes a gradual rotation of the director, which induces a spontaneous and continuous twist around the normal of the preferred molecular directions [Fig. 2(b)]. ...
... with respect to each other is present. The chiral nematic phase is very similar as for achiral mesogens, but the asymmetry of the molecules causes a gradual rotation of the director, which induces a spontaneous and continuous twist around the normal of the preferred molecular directions [Fig. 2(b)]. ...
00 Fourier optics – 4f Arrangement – Filtering and reconstruction
... and of evaporation of the liquid!) – intermediate level adjustment – a standing sound field is generated in the glass cell. It serves as a phase grid for the light wave which is incident perpendicular to it (see theory). In this state also, one notices no change of any kind on the observation screen ...
... and of evaporation of the liquid!) – intermediate level adjustment – a standing sound field is generated in the glass cell. It serves as a phase grid for the light wave which is incident perpendicular to it (see theory). In this state also, one notices no change of any kind on the observation screen ...
Coupling Efficiency and Alignment Sensitivity of Single
... cylindrical boundary on a dielectric rod of dielectric constant EJ and a semi-infinite surrounding medium of dielectric constant The condition for the asymptotic solution to be valid is that ak>>l. ...
... cylindrical boundary on a dielectric rod of dielectric constant EJ and a semi-infinite surrounding medium of dielectric constant The condition for the asymptotic solution to be valid is that ak>>l. ...
Collective effects in the radiation pressure force
... previous section, the cloud also has a diffracting effect on the incident light due to its finite size. From a macroscopic point of view, and as far as diffraction effects are concerned, the atomic cloud can be described as a dielectric medium with an effective complex refractive index, even when th ...
... previous section, the cloud also has a diffracting effect on the incident light due to its finite size. From a macroscopic point of view, and as far as diffraction effects are concerned, the atomic cloud can be described as a dielectric medium with an effective complex refractive index, even when th ...
Monolithic, unidirectional single
... field. There is a round-trip phase change that depends Fig. 3. The image rotation of a nonplanar resonator creates nonrectangular transverse-modepatterns. Four are pictured here. ...
... field. There is a round-trip phase change that depends Fig. 3. The image rotation of a nonplanar resonator creates nonrectangular transverse-modepatterns. Four are pictured here. ...
Paper Title
... omnidirectional dielectric mirror. Thus confinement of light in the hollow core is provided by the large photonic bandgaps established by the multiple alternating submicrometre-thick layers of a high-refractive-index glass and lowrefractive-index polymer6. We propose a new approach for IR waveguides ...
... omnidirectional dielectric mirror. Thus confinement of light in the hollow core is provided by the large photonic bandgaps established by the multiple alternating submicrometre-thick layers of a high-refractive-index glass and lowrefractive-index polymer6. We propose a new approach for IR waveguides ...
HIGH - Electrical and Computer Engineering
... radio frequency (RF) phase shifters, and analog/digital microwave links [1], [2]. They are also attractive as an external modulator in wavelength division multiplexing (WDM) fiber-optic telecommunication systems [3]. Recently, electrooptic (EO) polymers attracted extensive attention due to their adv ...
... radio frequency (RF) phase shifters, and analog/digital microwave links [1], [2]. They are also attractive as an external modulator in wavelength division multiplexing (WDM) fiber-optic telecommunication systems [3]. Recently, electrooptic (EO) polymers attracted extensive attention due to their adv ...
An optical leaky wave antenna with Si perturbations inside a
... inside a resonator are here studied for the first time, and closed-form formulas are provided to explain this new concept. A proper combination of the FPR length and the OLWA length leads to few dBs of tunability of the radiation intensity, paving the way to new possible ways of enhanced control of ...
... inside a resonator are here studied for the first time, and closed-form formulas are provided to explain this new concept. A proper combination of the FPR length and the OLWA length leads to few dBs of tunability of the radiation intensity, paving the way to new possible ways of enhanced control of ...
Michelson Interferometer
... hence make sure that you have enough information to make a sensible assessment.] The experimental arrangement is shown in Fig 3. The orientation of M2 can be adjusted for alignment with M1 and the path length in the reflective arm can be altered by moving M1 using a micrometer screw and lever arm. N ...
... hence make sure that you have enough information to make a sensible assessment.] The experimental arrangement is shown in Fig 3. The orientation of M2 can be adjusted for alignment with M1 and the path length in the reflective arm can be altered by moving M1 using a micrometer screw and lever arm. N ...
Opto acoustic
... characterized by its scattering cross section [m2] and phase function p(), using Mie theory the scattering may be determined knowing; the size parameter (perimeter compared to wavelength), refractive index ratio between particle and media. ...
... characterized by its scattering cross section [m2] and phase function p(), using Mie theory the scattering may be determined knowing; the size parameter (perimeter compared to wavelength), refractive index ratio between particle and media. ...
Time-Domain Large-Signal Modeling of Traveling
... behavior in phase modulation and frequency response, which needs to be carefully addressed when they are used in high-capacity transmission systems. We demonstrate a comprehensive model for depletion-mode Mach–Zehnder modulators (MZMs) on silicon-on-insulator, which provides a bridge between device ...
... behavior in phase modulation and frequency response, which needs to be carefully addressed when they are used in high-capacity transmission systems. We demonstrate a comprehensive model for depletion-mode Mach–Zehnder modulators (MZMs) on silicon-on-insulator, which provides a bridge between device ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.