Intensity Interferometry toward high resolution
... 1954, R. Hanbury Brown together with R. Q. Twiss elaborated a novel method of radio interferometry, intensity interferometry [8]. While previously, interferometry dealt with the optical superposition of the light, thus the amplitude of light, intensity interferometry looks at the superposition of th ...
... 1954, R. Hanbury Brown together with R. Q. Twiss elaborated a novel method of radio interferometry, intensity interferometry [8]. While previously, interferometry dealt with the optical superposition of the light, thus the amplitude of light, intensity interferometry looks at the superposition of th ...
Power quantum control of odd-order multiwave
... mixing (MWM) signals propagate along the same direction, which deviate an angle θ from E 1 . The MWM signals and the transmitted probe are detected by an avalanche photodiode detector and a photodiode, respectively. Two types of nondirectional fluorescence signals are also generated and fall into th ...
... mixing (MWM) signals propagate along the same direction, which deviate an angle θ from E 1 . The MWM signals and the transmitted probe are detected by an avalanche photodiode detector and a photodiode, respectively. Two types of nondirectional fluorescence signals are also generated and fall into th ...
Ultrafast Internal Conversion of Aromatic Molecules Studied
... to low-density species such as molecular and metal clusters in supersonic beams [18]. However, a photoelectron angular distribution can hardly be measured with a magnetic bottle, as it utilizes electron cyclotron motions in a magnetic field. Chandler and Houston introduced the two-dimensional (2D) i ...
... to low-density species such as molecular and metal clusters in supersonic beams [18]. However, a photoelectron angular distribution can hardly be measured with a magnetic bottle, as it utilizes electron cyclotron motions in a magnetic field. Chandler and Houston introduced the two-dimensional (2D) i ...
PPT-IIa - Laboratory for Remote Sensing Hydrology and Spatial
... Rayleigh scattering • Rayleigh scattering occurs when the diameter of atmospheric particles (usually gas molecules such as oxygen and nitrogen) are much smaller than the wavelength of the incident EM radiation. • Similar to the absorption coefficient in the atmospheric absorption process, scatterin ...
... Rayleigh scattering • Rayleigh scattering occurs when the diameter of atmospheric particles (usually gas molecules such as oxygen and nitrogen) are much smaller than the wavelength of the incident EM radiation. • Similar to the absorption coefficient in the atmospheric absorption process, scatterin ...
D12 in docx
... lithography. A red laser focus exposes the photoresist, while a green laser depletes (or de-excites or “erases”) from all sides using a bottle beam. (b) Foci measured by scanning a gold bead through the focus in three dimensions. Taken from Ref.[D12:5]. ...
... lithography. A red laser focus exposes the photoresist, while a green laser depletes (or de-excites or “erases”) from all sides using a bottle beam. (b) Foci measured by scanning a gold bead through the focus in three dimensions. Taken from Ref.[D12:5]. ...
Plasmonics: Fundamentals and Applications
... Setup for single-particle spectroscopy using evanescent excitation via total internal reflection at a prism Shift of particle plasmon resonance detected using prism excitation Experimental setup for white light near-field optical transmission spectroscopy of single metallic particles Near-field imag ...
... Setup for single-particle spectroscopy using evanescent excitation via total internal reflection at a prism Shift of particle plasmon resonance detected using prism excitation Experimental setup for white light near-field optical transmission spectroscopy of single metallic particles Near-field imag ...
plasmonics: fundamentals and applications
... Setup for single-particle spectroscopy using evanescent excitation via total internal reflection at a prism Shift of particle plasmon resonance detected using prism excitation Experimental setup for white light near-field optical transmission spectroscopy of single metallic particles Near-field imag ...
... Setup for single-particle spectroscopy using evanescent excitation via total internal reflection at a prism Shift of particle plasmon resonance detected using prism excitation Experimental setup for white light near-field optical transmission spectroscopy of single metallic particles Near-field imag ...
S P E C T R O S C O... F E R R O I C S Y S...
... the resolution of classical optical Kerr microscopy does not suffice anymore. Methods for studying domain dynamics at nanoscale are available, but are very time consuming and expensive. It’s extremely complicated to measure both magnetic and electric properties simultaneously. This creates a need fo ...
... the resolution of classical optical Kerr microscopy does not suffice anymore. Methods for studying domain dynamics at nanoscale are available, but are very time consuming and expensive. It’s extremely complicated to measure both magnetic and electric properties simultaneously. This creates a need fo ...
Alkyl Chain Length Dependence of the Dynamics and Structure in
... 2.A. PSPP Spectroscopy. Both PSPP and 2D IR measurements were performed with pump−probe geometry using the same optical platform. Details of the setup have been reported previously;20 here a brief description is presented. A home-built mid-IR optical parametric amplifier, which was pumped by a Ti:sap ...
... 2.A. PSPP Spectroscopy. Both PSPP and 2D IR measurements were performed with pump−probe geometry using the same optical platform. Details of the setup have been reported previously;20 here a brief description is presented. A home-built mid-IR optical parametric amplifier, which was pumped by a Ti:sap ...
alkalinity of groundwater samples
... property that is derived from the sum of the neutralising capabilities of all bases present in a water sample. Alkalinity is measured by volumetric analysis using a standardized acid titrant. The endpoint is signalled by a colour change of a pH indicator, such as phenolphthalein or methyl orange or ...
... property that is derived from the sum of the neutralising capabilities of all bases present in a water sample. Alkalinity is measured by volumetric analysis using a standardized acid titrant. The endpoint is signalled by a colour change of a pH indicator, such as phenolphthalein or methyl orange or ...
Diffractive optical element and optical pickup apparatus
... optical pickup apparatus that has a simple construction, that achieves compatibility With three different types of recording medium including a next-generation format, and that employs a diffractive optical element offering high diffrac tion e?iciency and easy to fabricate. [0014] In order to attain ...
... optical pickup apparatus that has a simple construction, that achieves compatibility With three different types of recording medium including a next-generation format, and that employs a diffractive optical element offering high diffrac tion e?iciency and easy to fabricate. [0014] In order to attain ...
PLASMONICS: FUNDAMENTALS AND APPLICATIONS
... Setup for single-particle spectroscopy using evanescent excitation via total internal reflection at a prism Shift of particle plasmon resonance detected using prism excitation Experimental setup for white light near-field optical transmission spectroscopy of single metallic particles Near-field imag ...
... Setup for single-particle spectroscopy using evanescent excitation via total internal reflection at a prism Shift of particle plasmon resonance detected using prism excitation Experimental setup for white light near-field optical transmission spectroscopy of single metallic particles Near-field imag ...
Changes in spatial extent and peak double optical density of human
... 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 nearly no absorption of light at wavelengths longer than 5 ...
... 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 nearly no absorption of light at wavelengths longer than 5 ...
TiO2-graphene oxide nanocomposite as advanced photocatalytic
... [11]. This program permits to estimate the weight fractions of crystalline phases and mean coherence length by means of Rietveld refinement procedure. AFM images were obtained using an NTEGRA Aura (NT-MTD) microscope. A sample of the diluted dispersion was placed on synthetic mica as an atomically s ...
... [11]. This program permits to estimate the weight fractions of crystalline phases and mean coherence length by means of Rietveld refinement procedure. AFM images were obtained using an NTEGRA Aura (NT-MTD) microscope. A sample of the diluted dispersion was placed on synthetic mica as an atomically s ...
feature article - Electrical and Computer Engineering
... the spectrum and can be measured by UV-visible-IR extinction spectroscopy. The ideal nanofabrication technique for systematic study of size-dependent properties would be materials and substrate general; inexpensive; flexible in nanoparticle size, shape, and spacing parameters; and massively parallel ...
... the spectrum and can be measured by UV-visible-IR extinction spectroscopy. The ideal nanofabrication technique for systematic study of size-dependent properties would be materials and substrate general; inexpensive; flexible in nanoparticle size, shape, and spacing parameters; and massively parallel ...
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 ...
Brillouin scattering at high pressure: an overview
... the optical phonons giving rise to Raman scattering are of the order of 10–1000 cm1 (1.2–120 meV), whereas the Brillouin wavenumbers are of the order of 0.1–6 cm1 . Because of this proximity with the elastically scattered Rayleigh line, apparatus of much higher resolution has to be used to discrim ...
... the optical phonons giving rise to Raman scattering are of the order of 10–1000 cm1 (1.2–120 meV), whereas the Brillouin wavenumbers are of the order of 0.1–6 cm1 . Because of this proximity with the elastically scattered Rayleigh line, apparatus of much higher resolution has to be used to discrim ...
co 2 laser
... Glass acts as an excellent host material for neodymium. As in YAG, within the glass also local electric fields modify the Nd3+ ion energy levels. Since the line width is much broader in glass than in YAG for Nd3+ ions, the threshold pump power required for laser action is higher. Nd: Glass lasers ar ...
... Glass acts as an excellent host material for neodymium. As in YAG, within the glass also local electric fields modify the Nd3+ ion energy levels. Since the line width is much broader in glass than in YAG for Nd3+ ions, the threshold pump power required for laser action is higher. Nd: Glass lasers ar ...
Exp. 71 - Caltech
... to be equal to the radius of curvature of the Fabry-Perot mirrors, L = Rmirror . In this case, the mode frequencies of the various transverse modes all become degenerate with a separation of c/4L = ∆ν F SR /2 (see Yariv, Section 4.6, for a derivation of this). For this special case, called a “confoc ...
... to be equal to the radius of curvature of the Fabry-Perot mirrors, L = Rmirror . In this case, the mode frequencies of the various transverse modes all become degenerate with a separation of c/4L = ∆ν F SR /2 (see Yariv, Section 4.6, for a derivation of this). For this special case, called a “confoc ...
Phonons in III-nitride thinfilms, bulk and nanowires: a closer look into
... commonly accepted today was given. InN is more difficult to grow than other IIIV nitrides such as GaN because its low dissociation temperature (≈ 630◦ C) and high equilibrium vapour pressure of nitrogen. Due to these difficulties, early InN samples were poorly crystalline and exhibited high free ele ...
... commonly accepted today was given. InN is more difficult to grow than other IIIV nitrides such as GaN because its low dissociation temperature (≈ 630◦ C) and high equilibrium vapour pressure of nitrogen. Due to these difficulties, early InN samples were poorly crystalline and exhibited high free ele ...
Pulsed photoacoustic techniques and glucose determination in
... Determination of blood glucose level is a frequently occurring procedure in diabetes care. As the most common method involves collecting blood drops for chemical analysis, it is invasive and liable to afflict a degree of pain and cause a skin injury. To eliminate these disadvantages, this thesis foc ...
... Determination of blood glucose level is a frequently occurring procedure in diabetes care. As the most common method involves collecting blood drops for chemical analysis, it is invasive and liable to afflict a degree of pain and cause a skin injury. To eliminate these disadvantages, this thesis foc ...
OTDR DISTRIBUTED SENSING OF LIQUID HYDROCARBONS
... coating, the light guiding properties of the fiber and the backscatter signal can be affected by optical effects induced in this cladding due to a penetrating chemical. Thus, it is possible to detect the presence and spatial distribution of analyte molecules along the active length of the fiber. Su ...
... coating, the light guiding properties of the fiber and the backscatter signal can be affected by optical effects induced in this cladding due to a penetrating chemical. Thus, it is possible to detect the presence and spatial distribution of analyte molecules along the active length of the fiber. Su ...
Metal Nanoparticles for Microscopy and Spectroscopy
... a transparent material because the electrons cannot respond fast enough to screen the field. In most metals, the plasma frequency is in the ultraviolet, making them reflective in the visible range. Some metals, such as copper and gold, have interband transitions in the visible range, whereby specific ...
... a transparent material because the electrons cannot respond fast enough to screen the field. In most metals, the plasma frequency is in the ultraviolet, making them reflective in the visible range. Some metals, such as copper and gold, have interband transitions in the visible range, whereby specific ...
Fabrication of submicrometer 3D structures by one
... such as propagation of light through mismatched refractive index and/or absorbing media. We demonstrated that when working with refractive index mismatch-free and very low absorption conditions, the light could be focused deeply inside the material, allowing a 3D optical manipulation. We then demons ...
... such as propagation of light through mismatched refractive index and/or absorbing media. We demonstrated that when working with refractive index mismatch-free and very low absorption conditions, the light could be focused deeply inside the material, allowing a 3D optical manipulation. We then demons ...
Application of ion scattering techniques to characterize polymer
... target. By detecting the energy of the recoiling nuclei the depth-profile perpendicular to the surface of the target is measured. In ``cleaning up the tower of babel of acronyms (CUTBA) in IBA'', the consensus of the ion beam community was to call this technique elastic recoil detection (ERD) analys ...
... target. By detecting the energy of the recoiling nuclei the depth-profile perpendicular to the surface of the target is measured. In ``cleaning up the tower of babel of acronyms (CUTBA) in IBA'', the consensus of the ion beam community was to call this technique elastic recoil detection (ERD) analys ...