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Total internal reflection microscopy studies on colloidal particle
... “We must take care not to make intellect our God. It has, of course, powerful muscles, but has no personality. It cannot rule, only serve.” ...
... “We must take care not to make intellect our God. It has, of course, powerful muscles, but has no personality. It cannot rule, only serve.” ...
Tuneable, stabilised diode lasers for compact atomic frequency
... transition from a Rb vapour cell and thus provided a stable frequency reference. The physical parameters of this stabilisation setup like, e.g. cell temperature and the magnetic field, were well-controlled and held fixed at their respective values. The second laser could be stabilised using either a s ...
... transition from a Rb vapour cell and thus provided a stable frequency reference. The physical parameters of this stabilisation setup like, e.g. cell temperature and the magnetic field, were well-controlled and held fixed at their respective values. The second laser could be stabilised using either a s ...
Theoretical and experimental characterization of coherent anti-Stokes Raman scattering microscopy
... The reason for using a collinear beam geometry in CARS microscopy is as follows: CARS needs to fulfill the phase-matching condition 兩 ⌬k兩 • l Ⰶ , where ⌬k ⫽ kas ⫺ (2kp ⫺ ks ) is the wave-vector mismatch and l is the interaction length. / 兩 ⌬k兩 is the coherence length at which the first maximum o ...
... The reason for using a collinear beam geometry in CARS microscopy is as follows: CARS needs to fulfill the phase-matching condition 兩 ⌬k兩 • l Ⰶ , where ⌬k ⫽ kas ⫺ (2kp ⫺ ks ) is the wave-vector mismatch and l is the interaction length. / 兩 ⌬k兩 is the coherence length at which the first maximum o ...
PowerPoint Presentation - Tip-tilt mirror and sensor configuration
... primary mirror must match the specs of the secondary mirror. For HST they didn’t match. Page 6 ...
... primary mirror must match the specs of the secondary mirror. For HST they didn’t match. Page 6 ...
Fiber Optic Sensors and Their Applications
... temperature changes. They are also less reliable and more expensive. Coupling of light from source to fiber is an important aspect and may call for special optical devices. Use of pigtailed source can alleviate this problem but such devices cost more. Fiber lasers and amplifiers are fast becoming co ...
... temperature changes. They are also less reliable and more expensive. Coupling of light from source to fiber is an important aspect and may call for special optical devices. Use of pigtailed source can alleviate this problem but such devices cost more. Fiber lasers and amplifiers are fast becoming co ...
Through the Looking Glass
... ments used for the shaping of this “rubber” mirror are piezoelectric crystals whose lengths change precisely when the voltages across their faces are changed. Such mirrors have been built, and research on improving their properties is proceeding in a number of laboratories. However, these mirrors su ...
... ments used for the shaping of this “rubber” mirror are piezoelectric crystals whose lengths change precisely when the voltages across their faces are changed. Such mirrors have been built, and research on improving their properties is proceeding in a number of laboratories. However, these mirrors su ...
Light fan driven by relativistic laser pulse
... can be transported to a small volume in very short time. The twisted light with strongest torque by far can be found in twisted laser driven HHG experiments. In the experiments of Zurch et al. [21], a 800 nm laser is reflected from the spatial light modulator to obtain a twisted light with peaking i ...
... can be transported to a small volume in very short time. The twisted light with strongest torque by far can be found in twisted laser driven HHG experiments. In the experiments of Zurch et al. [21], a 800 nm laser is reflected from the spatial light modulator to obtain a twisted light with peaking i ...
U17301 - 3B Scientific
... devices. Using diode laser as a light source for experiments enables both teacher and student to understand the principle of simple and more complicated optical systems. In this guide book you can find many basic experiments and demonstrations using U17300 and U17301, which is an additional set of o ...
... devices. Using diode laser as a light source for experiments enables both teacher and student to understand the principle of simple and more complicated optical systems. In this guide book you can find many basic experiments and demonstrations using U17300 and U17301, which is an additional set of o ...
Lab 1
... a 2 antibody recognizing the 1 antibody. these secondary antibodies makes this method more convenient, in practice. 3) Direct attachment through covalent linkage. Although it requires more work, it is also possible to chemically link a fluorescent tag to any protein of interest. Fluorescent molecule ...
... a 2 antibody recognizing the 1 antibody. these secondary antibodies makes this method more convenient, in practice. 3) Direct attachment through covalent linkage. Although it requires more work, it is also possible to chemically link a fluorescent tag to any protein of interest. Fluorescent molecule ...
DTS0116-Optical Coatings.qxd
... designed and made for a predetermined angle of incidence (such as 0 or 45 degrees) or range of incident angles (eg. 0-20, 35-50 degrees) depending on the optical design of the device used. They are used for a variety of applications that require beam combining and separation based on wavelength. One ...
... designed and made for a predetermined angle of incidence (such as 0 or 45 degrees) or range of incident angles (eg. 0-20, 35-50 degrees) depending on the optical design of the device used. They are used for a variety of applications that require beam combining and separation based on wavelength. One ...
RESOLUTION OF ICCD CAMERAS
... and analysed. As shown in figure 4, the LSF curve was then fitted with a Lorentzian function of the form (C.a)/(a²+x²) where C and a are constants and x the pixel number. In this particular case, after making the appropriate unit conversion, a FWHM of about 27.9 μm was found. By applying a Fourier t ...
... and analysed. As shown in figure 4, the LSF curve was then fitted with a Lorentzian function of the form (C.a)/(a²+x²) where C and a are constants and x the pixel number. In this particular case, after making the appropriate unit conversion, a FWHM of about 27.9 μm was found. By applying a Fourier t ...
Viscosity dependence of optical limiting in carbon black
... India ink, has proved to be an excellent optical limiter material having a broadband response and a relatively low limiting threshold 共⬃1 J兲, while maintaining high linear transmittance of ⬎50%.3–5 However, as reported in these studies, after repeated irradiation, the limiting ceases. This is to be ...
... India ink, has proved to be an excellent optical limiter material having a broadband response and a relatively low limiting threshold 共⬃1 J兲, while maintaining high linear transmittance of ⬎50%.3–5 However, as reported in these studies, after repeated irradiation, the limiting ceases. This is to be ...
A Study on Rayleigh Backscattering Noise in Single Fiber
... backscattering (RB) noise along the length of the fiber optic network by a certain method. Rayleigh backscattering noise which is generated by some distributed reflections of random index fluctuation along the optical fiber may cause severe degradation problems in bidirectional transmission performa ...
... backscattering (RB) noise along the length of the fiber optic network by a certain method. Rayleigh backscattering noise which is generated by some distributed reflections of random index fluctuation along the optical fiber may cause severe degradation problems in bidirectional transmission performa ...
Light Source Notes
... properties of the LTP detector (e.g., saturation intensity and related exposure time) and mode of the LTP measurement (e.g., possibility for multiple averaging of the interference features), different bandwidths of the laser angular noise spectrum contribute into the overall noise of the instrument. ...
... properties of the LTP detector (e.g., saturation intensity and related exposure time) and mode of the LTP measurement (e.g., possibility for multiple averaging of the interference features), different bandwidths of the laser angular noise spectrum contribute into the overall noise of the instrument. ...
EBSD SEM TEM
... However, while the angle at which the first minimum occurs (which is sometimes described as the radius of the Airy disk) depends only on wavelength and aperture size D, the appearance of the diffraction pattern will vary with the intensity (brightness) of the light source. Because any detector (ey ...
... However, while the angle at which the first minimum occurs (which is sometimes described as the radius of the Airy disk) depends only on wavelength and aperture size D, the appearance of the diffraction pattern will vary with the intensity (brightness) of the light source. Because any detector (ey ...
Translation-invariant object recognition system using an optical correlator and a super-
... architectures and algorithms implemented on digital electronic computers. Image correlation with electronic hardware is often too slow for target interception applications because the data is compared serially. Optical correlation techniques possess a tremendous potential advantage in speed because ...
... architectures and algorithms implemented on digital electronic computers. Image correlation with electronic hardware is often too slow for target interception applications because the data is compared serially. Optical correlation techniques possess a tremendous potential advantage in speed because ...
Modes in Optical Fibers
... alignment of the fiber along the axial direction (along the direction propagation). Adjust the X and Y components of the fiber alignment using fine adjustment knobs on the tilt stage of the fiber coupler, to achieve the maximum coupling. The complete experimental setup is shown in Fig 2. ...
... alignment of the fiber along the axial direction (along the direction propagation). Adjust the X and Y components of the fiber alignment using fine adjustment knobs on the tilt stage of the fiber coupler, to achieve the maximum coupling. The complete experimental setup is shown in Fig 2. ...
Download PDF
... 兾公N. This characteristic time is much longer in typical DLS experiments, as it is set by the time required by the scatterers to move over a distance q⫺1, where q is the wave vector. Thus, DWS is suitable for investigations of much slower dynamic processes, such as those developed in glassy systems, ...
... 兾公N. This characteristic time is much longer in typical DLS experiments, as it is set by the time required by the scatterers to move over a distance q⫺1, where q is the wave vector. Thus, DWS is suitable for investigations of much slower dynamic processes, such as those developed in glassy systems, ...
Single-shot Detection of Wavepacket Evolution
... tiple measurements at the same pump-probe delay. However, this necessarily increases the amount of time required to obtain a full delay scan and increases the possibilities for long term drifts, particularly in low repetition rate systems. In some situations, maintaining the required stability durin ...
... tiple measurements at the same pump-probe delay. However, this necessarily increases the amount of time required to obtain a full delay scan and increases the possibilities for long term drifts, particularly in low repetition rate systems. In some situations, maintaining the required stability durin ...
New TURF for TIRF - Stowers Institute for Medical Research
... At a specific critical angle [θcritical = sin-1(n1/n2)] light is totally reflected from the glass/water interface. The reflection generates a very thin electromagnetic field that has an identical frequency to that of the incident light, providing a means to selectively excite fluorophores within ≤ 1 ...
... At a specific critical angle [θcritical = sin-1(n1/n2)] light is totally reflected from the glass/water interface. The reflection generates a very thin electromagnetic field that has an identical frequency to that of the incident light, providing a means to selectively excite fluorophores within ≤ 1 ...
Exp. 71 - Caltech
... they are used for such applications as sensitive wavelength discriminators, as stable frequency references, and for building up large field intensities with low input powers. Also, lasers are all made from optical cavities. For our diode lasers, the cavity is made from a semiconductor material a few ...
... they are used for such applications as sensitive wavelength discriminators, as stable frequency references, and for building up large field intensities with low input powers. Also, lasers are all made from optical cavities. For our diode lasers, the cavity is made from a semiconductor material a few ...
Electron diffraction for analysing crystal orientation of thin films
... planes and the diffracted beams interfere with each other. This interference pattern may in some cases be interpreted as directly representing the atomic structure. b) For parallel illumination the diffraction mode is a (conventional) spot pattern. c) Incident plane waves covering a range of directi ...
... planes and the diffracted beams interfere with each other. This interference pattern may in some cases be interpreted as directly representing the atomic structure. b) For parallel illumination the diffraction mode is a (conventional) spot pattern. c) Incident plane waves covering a range of directi ...
4.1 Simulated Emission and Photon Amplification
... emission. Photons from this stimulated emission can themselves further stimulate emissions leading to 5an avalanche stimulated emissions and coherent photons being emitted. ...
... emission. Photons from this stimulated emission can themselves further stimulate emissions leading to 5an avalanche stimulated emissions and coherent photons being emitted. ...
Optical and acoustic beam shaping for imaging and
... graduate study. It has been a great pleasure and honour to work with all of them. First, I would like to thank my supervisor, Mike MacDonald. From my first visit to Institute of Medical Science and Technology (IMSaT) in September 2010, I knew this would be where I want to perform research. Mike has ...
... graduate study. It has been a great pleasure and honour to work with all of them. First, I would like to thank my supervisor, Mike MacDonald. From my first visit to Institute of Medical Science and Technology (IMSaT) in September 2010, I knew this would be where I want to perform research. Mike has ...
In cellulo Evaluation of Phototransformation Quantum - HAL
... Since the seminal work by Dickson et al [22], the blinking behavior of a number of FPs was investigated by fluorescence correlation spectroscopy [12,23,24,25], concentrating on fast (,kHz) rather than slow blinking regimes (,1–10 Hz). The occurrence of long-lasting dark states has been noticed [26,2 ...
... Since the seminal work by Dickson et al [22], the blinking behavior of a number of FPs was investigated by fluorescence correlation spectroscopy [12,23,24,25], concentrating on fast (,kHz) rather than slow blinking regimes (,1–10 Hz). The occurrence of long-lasting dark states has been noticed [26,2 ...
Confocal microscopy
Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of adding a spatial pinhole placed at the confocal plane of the lens to eliminate out-of-focus light. It enables the reconstruction of three-dimensional structures from the obtained images. This technique has gained popularity in the scientific and industrial communities and typical applications are in life sciences, semiconductor inspection and materials science.