parametric interactions of short optical pulses in quasi
... through the engineering of devices by patterning nonlinear materials. QPM devices are shown to enable tunable control of the phase response of second-harmonic generation (SHG), engineering of broad-bandwidth SHG using spectral angular dispersion, and tailoring of spatial solitons that exist through ...
... through the engineering of devices by patterning nonlinear materials. QPM devices are shown to enable tunable control of the phase response of second-harmonic generation (SHG), engineering of broad-bandwidth SHG using spectral angular dispersion, and tailoring of spatial solitons that exist through ...
Design and Analysis of Integrated Optical Waveguide Structures and
... (∆n) photonic structures. Besides silicon nitride (Si3N4) strip waveguides, lateral tapers, bended waveguides, two-dimensional photonic crystals (PhCs) the focus lies on monolithically integrated waveguide butt-coupled Silicon-based light emitting devices (Sibased LEDs) [4, 5] for use as bioanalytic ...
... (∆n) photonic structures. Besides silicon nitride (Si3N4) strip waveguides, lateral tapers, bended waveguides, two-dimensional photonic crystals (PhCs) the focus lies on monolithically integrated waveguide butt-coupled Silicon-based light emitting devices (Sibased LEDs) [4, 5] for use as bioanalytic ...
polarization effects generated through the
... environment changes its features, but is always defined in some spatial distribution that might be homogeneous or non-homogeneous. The problem to solve is how to explain the changes generated by the interaction of light with non-homogeneous materials when these have an internal structure, asymmetric ...
... environment changes its features, but is always defined in some spatial distribution that might be homogeneous or non-homogeneous. The problem to solve is how to explain the changes generated by the interaction of light with non-homogeneous materials when these have an internal structure, asymmetric ...
Structural, Optical, Electrical and Thermal Characterizations of Pure
... using a Shimadzu FT-IR-8900 spectrometer in the wave number range 400 - 4000 cm–1. EDX patterns were recorded using JEOL-6360 Scanning Electron Microscope. Powder X-ray diffraction pattern was recorded using a Philips X pert PRO X-ray diffractometer with CuKα (λ = 1.5418Å) radiation. The optical pro ...
... using a Shimadzu FT-IR-8900 spectrometer in the wave number range 400 - 4000 cm–1. EDX patterns were recorded using JEOL-6360 Scanning Electron Microscope. Powder X-ray diffraction pattern was recorded using a Philips X pert PRO X-ray diffractometer with CuKα (λ = 1.5418Å) radiation. The optical pro ...
Get PDF - OSA Publishing
... evanescent field at the metal surface, thus creating conditions which are extremely sensitive to small changes in the close vicinity of the surface (∼300 nm). Working with graphene by SPR and several other graphene applications utilizing plasmonics has been demonstrated and reviewed [1,29–40]. In pa ...
... evanescent field at the metal surface, thus creating conditions which are extremely sensitive to small changes in the close vicinity of the surface (∼300 nm). Working with graphene by SPR and several other graphene applications utilizing plasmonics has been demonstrated and reviewed [1,29–40]. In pa ...
Construction and operation - the UQ Bose
... Research on degenerate quantum gases of dilute atomic gases has become a well established field in modern physics and revealed many astonishing phenomena. The first experiments on Bose and Fermi gases at low temperatures aimed to prove the predictions of quantum mechanics on a macroscopic scale. Since ...
... Research on degenerate quantum gases of dilute atomic gases has become a well established field in modern physics and revealed many astonishing phenomena. The first experiments on Bose and Fermi gases at low temperatures aimed to prove the predictions of quantum mechanics on a macroscopic scale. Since ...
Fiber optic sensor network for the monitoring of civil
... There is therefore a real need for a tool allowing an automatic and permanent monitoring from within the structure itself and with high precision and good spatial resolution. In this framework, the concept of smart structures has proved its effectiveness in other domains such as the monitoring of co ...
... There is therefore a real need for a tool allowing an automatic and permanent monitoring from within the structure itself and with high precision and good spatial resolution. In this framework, the concept of smart structures has proved its effectiveness in other domains such as the monitoring of co ...
Nanoreplicated positive and inverted submicrometer polymer
... near-infrared range can further boost the scattering enhancement when the excitation light is in the corresponding wavelength range.2,3 In addition to the material, the surface structure is also critical. According to the electromagnetic field enhancement theory, the enhancement factor is proportion ...
... near-infrared range can further boost the scattering enhancement when the excitation light is in the corresponding wavelength range.2,3 In addition to the material, the surface structure is also critical. According to the electromagnetic field enhancement theory, the enhancement factor is proportion ...
Holographic Optical Beam-Steering (HOBS)
... Sending a laser beam through a diffraction grating causes signal power losses including material losses and Fresnel loss. Material losses can occur from signal absorption into the glass and scattering of the light by localized non-uniformities in the glass. Fresnel loss is ...
... Sending a laser beam through a diffraction grating causes signal power losses including material losses and Fresnel loss. Material losses can occur from signal absorption into the glass and scattering of the light by localized non-uniformities in the glass. Fresnel loss is ...
Statistics of the received power for free space optical channels
... the laser beam and jitter are also artifacts of atmospheric turbulence. To accurately predict the signal fading that occurs in a laser communication system and to get a true picture of how this affects crucial performance parameters like bit error rate (BER) it is important to analyze the probabilit ...
... the laser beam and jitter are also artifacts of atmospheric turbulence. To accurately predict the signal fading that occurs in a laser communication system and to get a true picture of how this affects crucial performance parameters like bit error rate (BER) it is important to analyze the probabilit ...
Basic Wavefront Aberration Theory for Optical Metrology
... in the presence of aberration, divided by the intensity that would be obtained if no aberration were present, is called the Strehl ratio, the Strehl definition, or the Strehl intensity. The Strehl ratio is given by ...
... in the presence of aberration, divided by the intensity that would be obtained if no aberration were present, is called the Strehl ratio, the Strehl definition, or the Strehl intensity. The Strehl ratio is given by ...
applications of optical cavities in modern atomic, molecular
... Direct absorption measurements often suffer from intensity noise on the laser. Noise amplitudes typically rises toward the low-frequency region of the intensity spectrum where many important signals reside; this problem has motivated development of modulation schemes, such as frequencymodulation spe ...
... Direct absorption measurements often suffer from intensity noise on the laser. Noise amplitudes typically rises toward the low-frequency region of the intensity spectrum where many important signals reside; this problem has motivated development of modulation schemes, such as frequencymodulation spe ...
STED Microscopy
... ruled by diffraction, as described by Eq. (10.1). The key to achieving diffractionunlimited resolution lies in the light–sample interaction, more specifically the interaction between illumination photons and probe molecules. If populations of probe molecules can be switched on and off independently, ...
... ruled by diffraction, as described by Eq. (10.1). The key to achieving diffractionunlimited resolution lies in the light–sample interaction, more specifically the interaction between illumination photons and probe molecules. If populations of probe molecules can be switched on and off independently, ...
Optical Spectroscopy of Spin Ladders
... The theoretical study by Dagotto et al. published in 1992 predicted superconductivity in two-leg ladders upon doping with holes [3]. Two holes that are close-by show a tendency to occupy the same rung, which means that there is an attractive interaction. Sigrist et al. found that the order parameter ...
... The theoretical study by Dagotto et al. published in 1992 predicted superconductivity in two-leg ladders upon doping with holes [3]. Two holes that are close-by show a tendency to occupy the same rung, which means that there is an attractive interaction. Sigrist et al. found that the order parameter ...
appel a projets recherche 2014 - lumat - Université Paris-Sud
... The advent of ultrafast science has made it possible to study the properties of matter in out of equilibrium conditions, opening new pathways for the study and the control of basic phenomena governing the behaviour of atoms, molecules, plasma and condensed matter. The Paris-Saclay campus presents an ...
... The advent of ultrafast science has made it possible to study the properties of matter in out of equilibrium conditions, opening new pathways for the study and the control of basic phenomena governing the behaviour of atoms, molecules, plasma and condensed matter. The Paris-Saclay campus presents an ...
Concentration effect of carbon nanotube based saturable
... Passively mode-locked erbium-doped fiber laser (MLEDFL) enables to generate optical pulses in picosecond and femtosecond regimes [1,2] and is often initiated by nonlinear optical elements with intensity-dependent response to favor optical pulsation over continuous–wave lasing [3]. The optical nonlin ...
... Passively mode-locked erbium-doped fiber laser (MLEDFL) enables to generate optical pulses in picosecond and femtosecond regimes [1,2] and is often initiated by nonlinear optical elements with intensity-dependent response to favor optical pulsation over continuous–wave lasing [3]. The optical nonlin ...