Structural and optical properties of visible active
... respect to each other by the tilting and displacement of the atoms in the octahedral building blocks that comprise the WO3 structure. The thermodynamically favored phase is reported to change with temperature (at standard pressure) for crystalline bulk WO3 as follows: monoclinic Pc (e-WO3) up to 230 ...
... respect to each other by the tilting and displacement of the atoms in the octahedral building blocks that comprise the WO3 structure. The thermodynamically favored phase is reported to change with temperature (at standard pressure) for crystalline bulk WO3 as follows: monoclinic Pc (e-WO3) up to 230 ...
A Calculation of Electric Field Strengths for Light in a Multilayer Thin
... Single layer quarter wavelength AR coating: 72 nm layer HfO2 on Si substrate with light incident at 30o and λ o = 550 nm. RS = 1.4% and RP = 0.74%. An uncoated silicon substrate would have reflectances of RS = 41.0% and RP = 30.6% Imperfect single-layer AR coating: 150 nm layer HfO2 on Si substrate ...
... Single layer quarter wavelength AR coating: 72 nm layer HfO2 on Si substrate with light incident at 30o and λ o = 550 nm. RS = 1.4% and RP = 0.74%. An uncoated silicon substrate would have reflectances of RS = 41.0% and RP = 30.6% Imperfect single-layer AR coating: 150 nm layer HfO2 on Si substrate ...
Bragg waveguides with low-index liquid cores
... Binary layered structures are attracting increasing interest for applications in which their resonant response or efficient reflection abilities can be exploited. They are the most simple multilayer optical structures. By using a binary layered structure as a waveguide cladding, first discussed in d ...
... Binary layered structures are attracting increasing interest for applications in which their resonant response or efficient reflection abilities can be exploited. They are the most simple multilayer optical structures. By using a binary layered structure as a waveguide cladding, first discussed in d ...
Optically induced forces in scanning probe microscopy
... Electromagnetic fields interact with a scanning probe by transferring energy or by imparting a momentum. Because these mechanisms may be inter-related, they both must be taken into account to properly describe the physical situation. In general, all interaction mechanisms result in forces acting on ...
... Electromagnetic fields interact with a scanning probe by transferring energy or by imparting a momentum. Because these mechanisms may be inter-related, they both must be taken into account to properly describe the physical situation. In general, all interaction mechanisms result in forces acting on ...
Frequency comb generation by CW laser injection
... Frequency comb lasers [1,2] have been around since the early 2000’s, enabling highly-accurate 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 fab ...
... Frequency comb lasers [1,2] have been around since the early 2000’s, enabling highly-accurate 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 fab ...
3-D Ultrahigh Resolution Optical Coherence Tomography with
... noninvasive optical biopsy of the human retina (D. Huang, et al, 1991). OCT is based on low coherence interferometry (R. C. Youngquist, et al, 1987), in which the pattern of interference between the reference and object beams is used to determine the amount of light reflected back from a certain poi ...
... noninvasive optical biopsy of the human retina (D. Huang, et al, 1991). OCT is based on low coherence interferometry (R. C. Youngquist, et al, 1987), in which the pattern of interference between the reference and object beams is used to determine the amount of light reflected back from a certain poi ...
253.pdf
... are done with s = 100 ps. A smaller ton ensures that only the favored mode 共S+兲 is lasing and all the light is coming from this mode while the other mode 共S−兲 is barely excited. Therefore the average output circular polarization is very high. A relatively large toff also ensures that the carriers i ...
... are done with s = 100 ps. A smaller ton ensures that only the favored mode 共S+兲 is lasing and all the light is coming from this mode while the other mode 共S−兲 is barely excited. Therefore the average output circular polarization is very high. A relatively large toff also ensures that the carriers i ...
Semiconductor optical amplifier-based all-optical gates
... to assemble. It is polarization insensitive because of polarization-independent SOA gain, and it is very power efficient. It also turned out that the gate can be extremely fast, and, by 1998, bit rate capabilities of 100 Gb/s were reported [15], [16]. At first glance, it seems impossible to reach th ...
... to assemble. It is polarization insensitive because of polarization-independent SOA gain, and it is very power efficient. It also turned out that the gate can be extremely fast, and, by 1998, bit rate capabilities of 100 Gb/s were reported [15], [16]. At first glance, it seems impossible to reach th ...
Feedback-induced catastrophic optical mirror damage
... beam is used to measure the optical output power of the laser diode using a calibrated optical power meter. The transmitted beam runs through a thin film polarizer (TFP), which angle was adjusted to control the feedback strength. Finally, the beam is reflected by a dielectric mirror (R = 99.5%) back ...
... beam is used to measure the optical output power of the laser diode using a calibrated optical power meter. The transmitted beam runs through a thin film polarizer (TFP), which angle was adjusted to control the feedback strength. Finally, the beam is reflected by a dielectric mirror (R = 99.5%) back ...
Optical microscope - Frank`s Hospital Workshop
... "Galilean optical system" ; here an arrangement of fixed-focus convex lenses is used to provide a fixed magnification, but with the crucial distinction that the same optical components in the same spacing will, if physically inverted, result in a different, though still fixed, magnification. This al ...
... "Galilean optical system" ; here an arrangement of fixed-focus convex lenses is used to provide a fixed magnification, but with the crucial distinction that the same optical components in the same spacing will, if physically inverted, result in a different, though still fixed, magnification. This al ...
Full-Text PDF
... by several research groups [18–20]. However, infrared thermography does not permit us to distinguish between different kinds of skin cancers and requires careful calibration for the correct assignment of temperature to emitted radiation [9]. Other methods based on evaluation of skin electrical imped ...
... by several research groups [18–20]. However, infrared thermography does not permit us to distinguish between different kinds of skin cancers and requires careful calibration for the correct assignment of temperature to emitted radiation [9]. Other methods based on evaluation of skin electrical imped ...
Free-space optical communications have distinct advantages over
... The surface over which takes the same value is called the wave-front of the beam. Before entering the atmosphere light from far away sources forms plane waves, i.e. the wave-front of the beam is flat. Though, inside the atmosphere the speed of light varies as the inverse of the refractive index. A ...
... The surface over which takes the same value is called the wave-front of the beam. Before entering the atmosphere light from far away sources forms plane waves, i.e. the wave-front of the beam is flat. Though, inside the atmosphere the speed of light varies as the inverse of the refractive index. A ...
K.C. Neuman and S.M. Block, "Optical Trapping"
... of a laser), the second component of the optical force, the gradient force, must be considered. The gradient force, as the name suggests, arises from the fact that a dipole in an inhomogeneous electric field experiences a force in the direction of the field gradient.67 In an optical trap, the laser ...
... of a laser), the second component of the optical force, the gradient force, must be considered. The gradient force, as the name suggests, arises from the fact that a dipole in an inhomogeneous electric field experiences a force in the direction of the field gradient.67 In an optical trap, the laser ...
Chapter 12 Plane Waves at Boundaries and in Dispersive Media
... transmission at planar boundaries between media having different properties. Our study will allow any orientation between the wave and boundary, and will also include the important cases of multiple boundaries. We will also study the practical case of waves that carry power over a finite band of fre ...
... transmission at planar boundaries between media having different properties. Our study will allow any orientation between the wave and boundary, and will also include the important cases of multiple boundaries. We will also study the practical case of waves that carry power over a finite band of fre ...
Evolutionary optimization of layouts for high density free space
... the IEC-61754-7 norm [1]. The pitch between two adjacent fibers of a connector is 0.25 mm and the pitch between two fibers of different connectors is at least 4 mm. The distance between two fibers in transmission direction and thus the size of the system should be limited to 100 mm. For the realization ...
... the IEC-61754-7 norm [1]. The pitch between two adjacent fibers of a connector is 0.25 mm and the pitch between two fibers of different connectors is at least 4 mm. The distance between two fibers in transmission direction and thus the size of the system should be limited to 100 mm. For the realization ...
P approximation for reflectance imaging with an oblique beam of arbitrary profile 1
... stochastic processes of absorption and scattering. These processes are characterized by the probability distribution functions based on the RT theory and therefore the obtained results provide equivalent solutions. The MC method has been used extensively to solve tissue optics problems with homogene ...
... stochastic processes of absorption and scattering. These processes are characterized by the probability distribution functions based on the RT theory and therefore the obtained results provide equivalent solutions. The MC method has been used extensively to solve tissue optics problems with homogene ...
Geometrical-optics code for computing the optical
... Absorption of electromagnetic radiation by absorptive dielectric spheres such as snow grains in the near-infrared part of the solar spectrum cannot be neglected when radiative properties of snow are computed. Thus a new, to our knowledge, geometrical-optics code is developed to compute scattering an ...
... Absorption of electromagnetic radiation by absorptive dielectric spheres such as snow grains in the near-infrared part of the solar spectrum cannot be neglected when radiative properties of snow are computed. Thus a new, to our knowledge, geometrical-optics code is developed to compute scattering an ...
تحليل التوليد الفائق المســـــــتمر في الياف البلورة
... d 1 m , 1.4 m which gives 0 865nm . If we look at the cases of Fig.(3), they represent the presence of: SRS and 's and SRS and 2 , respectively. In Fig.(4a) we notice that the spectrum band is very narrow with little power (corresponding small order soliton ). The fact that P0 small ...
... d 1 m , 1.4 m which gives 0 865nm . If we look at the cases of Fig.(3), they represent the presence of: SRS and 's and SRS and 2 , respectively. In Fig.(4a) we notice that the spectrum band is very narrow with little power (corresponding small order soliton ). The fact that P0 small ...
LiNbO3 high-Speed optical FSK modulator
... where the DC-bias can be controlled by RFA. The other sub-MachZehnder structure of paths 2 and 4 are also set to be in null-bias point by using RFB. To eliminate upper sideband (USB) or lower sideband (LSB), the lightwave signal in each path also should have 90˚ phase difference to each other. When ...
... where the DC-bias can be controlled by RFA. The other sub-MachZehnder structure of paths 2 and 4 are also set to be in null-bias point by using RFB. To eliminate upper sideband (USB) or lower sideband (LSB), the lightwave signal in each path also should have 90˚ phase difference to each other. When ...
Coatings - CVI Laser Optics
... The vast majority of optical components are made of various types of glass, and most are coated with thin layers of special materials. The purpose of these coatings is to modify the reflection and transmission properties of the components’ surfaces. Whenever light passes from one medium into a mediu ...
... The vast majority of optical components are made of various types of glass, and most are coated with thin layers of special materials. The purpose of these coatings is to modify the reflection and transmission properties of the components’ surfaces. Whenever light passes from one medium into a mediu ...
Resonant bio- and chemical sensors using low-refractive
... sensors in this work are most relevant when precise refractive index diagnosis for liquids or their mixtures is required. 2. Resonant sensor design principles In this paper we detail design principles behind a resonant optical sensor utilizing low-refractive-index-contrast analyte-filled Bragg fibers. ...
... sensors in this work are most relevant when precise refractive index diagnosis for liquids or their mixtures is required. 2. Resonant sensor design principles In this paper we detail design principles behind a resonant optical sensor utilizing low-refractive-index-contrast analyte-filled Bragg fibers. ...
Technical Digest Post-Deadline Papers
... 3. DESIGN OF GRATING We used the general grating equation to show that the light diffracted by on-axis grating into the higher orders other than the 0-order cannot return to the focusing lens; if the pitch of the grating is shorten, this light may go beside the lens. The maximum pitches of the grati ...
... 3. DESIGN OF GRATING We used the general grating equation to show that the light diffracted by on-axis grating into the higher orders other than the 0-order cannot return to the focusing lens; if the pitch of the grating is shorten, this light may go beside the lens. The maximum pitches of the grati ...
CHAPTER 1 Wave Nature of Light
... molecules of ions in the crystal and thereby gives rise to the polarization of matter. ...
... molecules of ions in the crystal and thereby gives rise to the polarization of matter. ...
Prac%ce`Quiz3`Part1`
... Yes. normal. What is the light's wave length in air? #" the B) 500 No. nm A) B) 450 nm C) 630 nm D) 940 nm C) Depends on the frequency of the light. 6) A cylindrical tank 2.4m deep is full to the brim with water (n=1.33). Sunlight first hits part of bottominofa the ...
... Yes. normal. What is the light's wave length in air? #" the B) 500 No. nm A) B) 450 nm C) 630 nm D) 940 nm C) Depends on the frequency of the light. 6) A cylindrical tank 2.4m deep is full to the brim with water (n=1.33). Sunlight first hits part of bottominofa the ...
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
... Pockels[8] effect and has a very weak Franz-Keldysh effect, Kerr effect [9,10] at optical communication wavelengths of 1.3 μm and 1.6 μm. Silicon also has high thermal coefficient (~2E-4)[11] which is not suitable for high speed operation of modulators. Recently, it has been shown that strained sili ...
... Pockels[8] effect and has a very weak Franz-Keldysh effect, Kerr effect [9,10] at optical communication wavelengths of 1.3 μm and 1.6 μm. Silicon also has high thermal coefficient (~2E-4)[11] which is not suitable for high speed operation of modulators. Recently, it has been shown that strained sili ...