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... of GaN over a two-photon spectral range from 2.6 to 3.4 eV in two polarization configurations, and compared these re(2) sults with theory.1 In order to extract x (2) xzx and x zxx from the measurements, we developed an analysis that incorporates the interference effects that arise in SHG spectroscop ...
... of GaN over a two-photon spectral range from 2.6 to 3.4 eV in two polarization configurations, and compared these re(2) sults with theory.1 In order to extract x (2) xzx and x zxx from the measurements, we developed an analysis that incorporates the interference effects that arise in SHG spectroscop ...
Optical frequency modulated continuous wave (FMCW) range and
... sources have become available. By modulating current supplied to the laser the optical output frequency can be modulated. If the outgoing modulated light is divided into two parts, a transmitted and a local oscillator part, and a photodiode is used as detector, the frequency difference between the t ...
... sources have become available. By modulating current supplied to the laser the optical output frequency can be modulated. If the outgoing modulated light is divided into two parts, a transmitted and a local oscillator part, and a photodiode is used as detector, the frequency difference between the t ...
leading, peer-reviewed scientific journal
... With the optical wavelength and absorption coefficient fixed, eighteen different values were used for each of the remaining four variable grain parameters spanning each parameter range. This produced 184 different combinations of grain parameters, representing 184 different grains. We calculated the ...
... With the optical wavelength and absorption coefficient fixed, eighteen different values were used for each of the remaining four variable grain parameters spanning each parameter range. This produced 184 different combinations of grain parameters, representing 184 different grains. We calculated the ...
Effective Area of Optical Fibres
... fibre at a given wavelength no longer increases linearly with the input power at that wavelength. Nonlinearity in fibres essentially appears as the conversion of power from one wavelength to another. Examples of nonlinearities include: self-phase modulation (SPM), cross-phase modulation (XPM), four- ...
... fibre at a given wavelength no longer increases linearly with the input power at that wavelength. Nonlinearity in fibres essentially appears as the conversion of power from one wavelength to another. Examples of nonlinearities include: self-phase modulation (SPM), cross-phase modulation (XPM), four- ...
A Quantum Gas Microscope for Fermionic Atoms
... depth via the light intensity. As it will become clear in chapter 3, with ultracold atomic gases one can, so to speak, engineer a Hamiltonian of many-body system. Now this concept should be extended to fermionic atoms. This is especially appealing since electrons are fermions and strongly-correlated ...
... depth via the light intensity. As it will become clear in chapter 3, with ultracold atomic gases one can, so to speak, engineer a Hamiltonian of many-body system. Now this concept should be extended to fermionic atoms. This is especially appealing since electrons are fermions and strongly-correlated ...
Laser-based displays: a review - Optical Microsystems Laboratory
... lasers can vary with the junction temperature, which will in turn adversely affect the color balance of the display, if left uncontrolled. For a red laser diode, the deviations from the specified wavelength should be less than 0:5 nm, whereas power variations should be kept below 0.7%. Temperature s ...
... lasers can vary with the junction temperature, which will in turn adversely affect the color balance of the display, if left uncontrolled. For a red laser diode, the deviations from the specified wavelength should be less than 0:5 nm, whereas power variations should be kept below 0.7%. Temperature s ...
Metal-optic and Plasmonic Semiconductor
... Over the past few decades, semiconductor lasers have relentlessly followed the path towards miniaturization. Smaller lasers are more energy efficient, are cheaper to make, and open up new applications in sensing and displays, among many other things. Yet, up until recently, there was a fundamental p ...
... Over the past few decades, semiconductor lasers have relentlessly followed the path towards miniaturization. Smaller lasers are more energy efficient, are cheaper to make, and open up new applications in sensing and displays, among many other things. Yet, up until recently, there was a fundamental p ...
Physical properties of silver oxide thin films by pulsed laser deposition
... the growth chamber (2.01 sccm, corresponds to a chamber pressure of 7 × 10−3 mbar) and at a sputter power density of 1.0 W cm−2 , stoichiometric Ag2 O is formed and (iii) the mixed silver oxide films show p-type conductivity. The p-type conductivity in these films has been explained on the basis of ...
... the growth chamber (2.01 sccm, corresponds to a chamber pressure of 7 × 10−3 mbar) and at a sputter power density of 1.0 W cm−2 , stoichiometric Ag2 O is formed and (iii) the mixed silver oxide films show p-type conductivity. The p-type conductivity in these films has been explained on the basis of ...
Imaging Properties of Laser-Produced Parabolic Profile Microlenses
... and the reference sphere (an ideal optical system) at the exit pupil. The PSF cross-section for five concave microlenses is presented in Fig. 2. The PSF can be considered as the representation of illumination intensity of point object. If aberrations of an optical system are small then the illuminat ...
... and the reference sphere (an ideal optical system) at the exit pupil. The PSF cross-section for five concave microlenses is presented in Fig. 2. The PSF can be considered as the representation of illumination intensity of point object. If aberrations of an optical system are small then the illuminat ...
Weak and strong coupling regimes in plasmonic QED
... moment, and field confinement) are optimized such that the socalled ultrastrong coupling regime has been demonstrated.13,14 Circuits are promising on-chip setups but have to be operated at microwave frequencies and mK temperatures. A possible alternative at optical or telecom frequencies, with their ...
... moment, and field confinement) are optimized such that the socalled ultrastrong coupling regime has been demonstrated.13,14 Circuits are promising on-chip setups but have to be operated at microwave frequencies and mK temperatures. A possible alternative at optical or telecom frequencies, with their ...
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... experimental methodologies proved that techniques based on multiple light scattering offer unprecedented capabilities in different areas of material sciences. Due to characteristics such as beam directionality and intensity, the use of highly coherent radiation produced by lasers has been the undisput ...
... experimental methodologies proved that techniques based on multiple light scattering offer unprecedented capabilities in different areas of material sciences. Due to characteristics such as beam directionality and intensity, the use of highly coherent radiation produced by lasers has been the undisput ...
PPT - Institute of Physics, Bhubaneswar
... Increasing the length doesn‘t help due to strong absorption in the medium Electromagnetically Induced Transparency (EIT) provides a larger 3rd order non-linearity without absorption. ...
... Increasing the length doesn‘t help due to strong absorption in the medium Electromagnetically Induced Transparency (EIT) provides a larger 3rd order non-linearity without absorption. ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.