Novel applications of Photonic Force Microscopy Giovanni Volpe
... scattered light from the particle. The PFM had been applied to measure forces in the range of femto- to pico-Newton - well below the limits of what can be achieved with techniques based on micro-fabricated mechanical cantilevers, such as AFM - in many different fields with exciting applications, for ...
... scattered light from the particle. The PFM had been applied to measure forces in the range of femto- to pico-Newton - well below the limits of what can be achieved with techniques based on micro-fabricated mechanical cantilevers, such as AFM - in many different fields with exciting applications, for ...
pdf 228KB - People.csail.mit.edu
... A. Head model and probe placement We use segmented MRI data to create the head geometry that we employ for this study. Within this adult head model we distinguish three tissue types (extra-cerebral, CSF, and cerebral, as described in Table 1). The whole volume is voxelized in a cube with 128 voxels ...
... A. Head model and probe placement We use segmented MRI data to create the head geometry that we employ for this study. Within this adult head model we distinguish three tissue types (extra-cerebral, CSF, and cerebral, as described in Table 1). The whole volume is voxelized in a cube with 128 voxels ...
Thermal and electrical properties of - Ruhr
... The following chapters in this thesis are organized as follows: Chapter 2 introduces the basic concepts of thermal waves and reviews the different experimental techniques. Chapter 3 describes on the basic concepts of carrier density waves in semiconductors. Different recombination processes in semic ...
... The following chapters in this thesis are organized as follows: Chapter 2 introduces the basic concepts of thermal waves and reviews the different experimental techniques. Chapter 3 describes on the basic concepts of carrier density waves in semiconductors. Different recombination processes in semic ...
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A reconfigurable plasmofluidic lens ARTICLE Chenglong Zhao *, Yongmin Liu
... diameters (27, 17 and 5 mm, respectively). It is clearly seen that the SPP field is greatly altered by the surface bubble and the SPPs diverge after passing through the lens. Figure 3g shows the image in the Fourier plane after a surface bubble is generated. Compared with Fig. 3f, a new arc appears f ...
... diameters (27, 17 and 5 mm, respectively). It is clearly seen that the SPP field is greatly altered by the surface bubble and the SPPs diverge after passing through the lens. Figure 3g shows the image in the Fourier plane after a surface bubble is generated. Compared with Fig. 3f, a new arc appears f ...
Counterpropagating optical beams and solitons
... In addition to these localized states or dissipative (cavity) solitons, which are stabilized due to the common action of gain, loss, nonlinearity and diffraction, the propagation and self-action of a single beam in a NL medium is also known to generate spatial solitons [19]. Therefore, a natural ext ...
... In addition to these localized states or dissipative (cavity) solitons, which are stabilized due to the common action of gain, loss, nonlinearity and diffraction, the propagation and self-action of a single beam in a NL medium is also known to generate spatial solitons [19]. Therefore, a natural ext ...
Chapter 4 Optical Resonator
... (b) A transparent plate of thickness d, = 2.5 cm and refractive index n = 1.5 is placed inside the resonator and is tilted slightly to prevent light reflected from the plate from reaching the mirrors. Determine the spacing between the resonance frequencies of the resonator. 2. Semiconductor lasers a ...
... (b) A transparent plate of thickness d, = 2.5 cm and refractive index n = 1.5 is placed inside the resonator and is tilted slightly to prevent light reflected from the plate from reaching the mirrors. Determine the spacing between the resonance frequencies of the resonator. 2. Semiconductor lasers a ...
Near-Infrared Spectroscopy
... tissue. The importance of such a measure, especially in cerebral physiology, is that the human brain utilizes oxygen to continuously supply neurons with energy used for vital body functioning. In the absence of oxygen, as is the case during ischemic stroke or desanguination, cognitive and functional ...
... tissue. The importance of such a measure, especially in cerebral physiology, is that the human brain utilizes oxygen to continuously supply neurons with energy used for vital body functioning. In the absence of oxygen, as is the case during ischemic stroke or desanguination, cognitive and functional ...
Full text in DIVA
... on nonlinear absorption followed by fluorescence emission, i.e., the emitted photons are normally not coherent with the absorbed ones. However, when combined, the two measurement modes provide an important tool for imaging tissue intravitally in vivo or in sections.1,7,15,16 In the present work, a m ...
... on nonlinear absorption followed by fluorescence emission, i.e., the emitted photons are normally not coherent with the absorbed ones. However, when combined, the two measurement modes provide an important tool for imaging tissue intravitally in vivo or in sections.1,7,15,16 In the present work, a m ...
Mid-IR Spectra of IRAS 20343+4129 IRS 1 and IRS 3 M.F. Campbell
... mapped both continuum emission at 12.8 m and the [Ne II] line for IRS 3 (Fig. 4). We interpret our low resolution spectra and photometry with simple models that have two emitting dust cloud components (each with constant temperature and density), and an overlying absorbing cloud component. The mode ...
... mapped both continuum emission at 12.8 m and the [Ne II] line for IRS 3 (Fig. 4). We interpret our low resolution spectra and photometry with simple models that have two emitting dust cloud components (each with constant temperature and density), and an overlying absorbing cloud component. The mode ...
UNIT-4 OCN
... • After the initial measurement of output pulse width, the long fiber length may be cut back to a short length and the measurement repeated in order to obtain the effective input pulse width. • The fiber is generally cut back to the lesser of 10 m or 1% of its original length. • As an alternative t ...
... • After the initial measurement of output pulse width, the long fiber length may be cut back to a short length and the measurement repeated in order to obtain the effective input pulse width. • The fiber is generally cut back to the lesser of 10 m or 1% of its original length. • As an alternative t ...
Deposition and Characterization of Dielectric Distributed Bragg
... optical loss in the mirrors. Lower optical loss means more reflectance in the mirrors, as well as more output power for the same input power into the laser. One path to achieve this is to replace one or both of the semiconductor Distributed Bragg Reflectors (DBRs) in a VCSEL with dielectric ones. A ...
... optical loss in the mirrors. Lower optical loss means more reflectance in the mirrors, as well as more output power for the same input power into the laser. One path to achieve this is to replace one or both of the semiconductor Distributed Bragg Reflectors (DBRs) in a VCSEL with dielectric ones. A ...
Interferometry
Interferometry is a family of techniques in which waves, usually electromagnetic, are superimposed in order to extract information about the waves. Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology, oceanography, seismology, spectroscopy (and its applications to chemistry), quantum mechanics, nuclear and particle physics, plasma physics, remote sensing, biomolecular interactions, surface profiling, microfluidics, mechanical stress/strain measurement, and velocimetry.Interferometers are widely used in science and industry for the measurement of small displacements, refractive index changes and surface irregularities. In analytical science, interferometers are used in continuous wave Fourier transform spectroscopy to analyze light containing features of absorption or emission associated with a substance or mixture. An astronomical interferometer consists of two or more separate telescopes that combine their signals, offering a resolution equivalent to that of a telescope of diameter equal to the largest separation between its individual elements.