Bragg waveguides with low-index liquid cores
... This effect was also demonstrated in the regime of low refractive index contrast by Qu and Skorobogatiy [27] where an application to bulk refractive index sensing was demonstrated: a sensitivity of ≈ 1400 nm/RIU was achieved for aqueous solutions of salt (indices from ≈ 1.33 to 1.38). As discussed ...
... This effect was also demonstrated in the regime of low refractive index contrast by Qu and Skorobogatiy [27] where an application to bulk refractive index sensing was demonstrated: a sensitivity of ≈ 1400 nm/RIU was achieved for aqueous solutions of salt (indices from ≈ 1.33 to 1.38). As discussed ...
Option C – Imaging
... light. These are conveniently obtained from any distant object – spherical wavefronts from a point source become effectively parallel if they are a long distance from their origin. The focal length of a lens depends on the curvature of the surfaces and the refractive index of the material(s) from wh ...
... light. These are conveniently obtained from any distant object – spherical wavefronts from a point source become effectively parallel if they are a long distance from their origin. The focal length of a lens depends on the curvature of the surfaces and the refractive index of the material(s) from wh ...
PDF
... optical sensing [1]. Having been studied for decades, optical phased arrays take many forms, from laser arrays [2], to liquid crystals [3], to microelectromechanical systems [4,5]. Combined with complementary metal-oxidesemiconductor technologies, optical phased arrays have been developed in integra ...
... optical sensing [1]. Having been studied for decades, optical phased arrays take many forms, from laser arrays [2], to liquid crystals [3], to microelectromechanical systems [4,5]. Combined with complementary metal-oxidesemiconductor technologies, optical phased arrays have been developed in integra ...
Changes in spatial extent and peak double optical density of human
... The macular pigment (MP) is a yellow pigment found in the human fovea in both the inner and outer layers of the retina, and located along the axons of the cone photoreceptors [1]. It is mainly composed of two xanthophylls, lutein and zeaxanthin [2]. MP has a peak absorption wavelength at 460 nm but ...
... The macular pigment (MP) is a yellow pigment found in the human fovea in both the inner and outer layers of the retina, and located along the axons of the cone photoreceptors [1]. It is mainly composed of two xanthophylls, lutein and zeaxanthin [2]. MP has a peak absorption wavelength at 460 nm but ...
Acoustic spectra characteristics of atmospheric pressure plasma
... penetrating optical wave as a local oscillating power. The intensity of diffracted waves of higher orders is much smaller than that of the first order wave and can be neglected. The spatial intensity (Iac) of the resultant optical field at the back focal plane is given by the equation (1) [34,11]. W ...
... penetrating optical wave as a local oscillating power. The intensity of diffracted waves of higher orders is much smaller than that of the first order wave and can be neglected. The spatial intensity (Iac) of the resultant optical field at the back focal plane is given by the equation (1) [34,11]. W ...
Ph 76 ADVANCED PHYSICS LABORATORY — ATOMIC AND
... both “ground” states because neither can decay via an allowed transition), and the separation of the ground states was less than the Doppler width, then one might see a spectrum like in Figure 4. The extra cross-over dip results from a phenomenon called “optical pumping,” which occurs because atoms ...
... both “ground” states because neither can decay via an allowed transition), and the separation of the ground states was less than the Doppler width, then one might see a spectrum like in Figure 4. The extra cross-over dip results from a phenomenon called “optical pumping,” which occurs because atoms ...
The NAD 3100 series of three-fiber optical multiplexers are used to
... solutions. Due to their exceptional flatness and performance, these multiplexers can be used to either multiplex or demultiplex a set of wavelengths on the ITU Grid. This allows the operator to reduce the number of spares to account for, and greatly simplifies the system. The HWM 1100A family allows ...
... solutions. Due to their exceptional flatness and performance, these multiplexers can be used to either multiplex or demultiplex a set of wavelengths on the ITU Grid. This allows the operator to reduce the number of spares to account for, and greatly simplifies the system. The HWM 1100A family allows ...
Doppler-Free Spectroscopy MIT Department of Physics
... associated with the probe beam shows a simple, Dopplerbroadened lineshape that reflects the varying sizes of the velocity groups in the ground-state distribution. Now we return to the two-beam case, and let the laser ν = ν0 . Now the pump and probe beams interact with the same group of atoms, the v ...
... associated with the probe beam shows a simple, Dopplerbroadened lineshape that reflects the varying sizes of the velocity groups in the ground-state distribution. Now we return to the two-beam case, and let the laser ν = ν0 . Now the pump and probe beams interact with the same group of atoms, the v ...
Radar Scattering from a Self-Aff ine Fractal Surface: Near
... derivation involves two new assumptions that fundamentally differ from previous work. First, we assume that the surface topography is represented by a random, isotropic, self-affine fractal surface. Fractal surfaces are, by definition, nonstationary, and utilize a scale-dependent roughness parameter ...
... derivation involves two new assumptions that fundamentally differ from previous work. First, we assume that the surface topography is represented by a random, isotropic, self-affine fractal surface. Fractal surfaces are, by definition, nonstationary, and utilize a scale-dependent roughness parameter ...
Reflectivity of Nonlinear Apodized Chirped Fiber Bragg Grating Under Water
... crest in the index modulation is in phase with the next one, we have maximum mode coupling or reflection. Then, the Bragg condition is fulfilled. By modulating the quasi-periodic index perturbation in amplitude and (or) phase, we may obtain different optical filter characteristics. The formation of ...
... crest in the index modulation is in phase with the next one, we have maximum mode coupling or reflection. Then, the Bragg condition is fulfilled. By modulating the quasi-periodic index perturbation in amplitude and (or) phase, we may obtain different optical filter characteristics. The formation of ...
1.5 MB
... adjustment of the interferometric system, otherwise the results are ambiguous. Two methods based on the same concept (Fig. 3) were proposed for determining the vortex sign in the vortex lattice created in optical vortex interferometer [23, 24]. In the present paper the same basic idea is used. Figur ...
... adjustment of the interferometric system, otherwise the results are ambiguous. Two methods based on the same concept (Fig. 3) were proposed for determining the vortex sign in the vortex lattice created in optical vortex interferometer [23, 24]. In the present paper the same basic idea is used. Figur ...
Frequency comb generation by CW laser injection
... optical time and frequency measurements resulting in many applications [3–6]. Integrated optical frequency comb lasers would pave the way to an even broader application of comb technology because of low fabrication and maintenance costs. Mode-locked quantum dot lasers (MLQDL) are interesting for thi ...
... optical time and frequency measurements resulting in many applications [3–6]. Integrated optical frequency comb lasers would pave the way to an even broader application of comb technology because of low fabrication and maintenance costs. Mode-locked quantum dot lasers (MLQDL) are interesting for thi ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.