peer-review article - NC State University
... (1734 cm-1) to the carbohydrates, was calculated (Pandey 2005). The carbohydrate peak at 1375 cm-1 was not affected by irradiation and was therefore used as a reference. Hereinafter, the maximum heights of the specific peaks at 1505 cm-1, 1375 cm-1, and 1734 cm-1 were measured and divided. ...
... (1734 cm-1) to the carbohydrates, was calculated (Pandey 2005). The carbohydrate peak at 1375 cm-1 was not affected by irradiation and was therefore used as a reference. Hereinafter, the maximum heights of the specific peaks at 1505 cm-1, 1375 cm-1, and 1734 cm-1 were measured and divided. ...
Direct welding of fused silica with femtosecond fiber laser
... After the multi line welding experiment, it can be further applied to seal a complete region by using four-edge multi line welding so that we can protect the center region with or without optical coating on the surface. Two fused silica sample substrates without optical coating were used to give a p ...
... After the multi line welding experiment, it can be further applied to seal a complete region by using four-edge multi line welding so that we can protect the center region with or without optical coating on the surface. Two fused silica sample substrates without optical coating were used to give a p ...
Quadriwave lateral shearing interferometry
... be precise in order to obtain quantitative measurements. In this paper, we propose a new application in phase-imaging microscopy for WFS based on quadri-wave lateral shearing interferometry (QWLSI) [18]. This technique requires only one measurement, without any mobile element, in order to recover th ...
... be precise in order to obtain quantitative measurements. In this paper, we propose a new application in phase-imaging microscopy for WFS based on quadri-wave lateral shearing interferometry (QWLSI) [18]. This technique requires only one measurement, without any mobile element, in order to recover th ...
View
... refractive index), i.e. the rate of change in the direction of wavefront shear) are primarily responsible for introducing contrast into specimen images. ...
... refractive index), i.e. the rate of change in the direction of wavefront shear) are primarily responsible for introducing contrast into specimen images. ...
Fourier domain optical coherence tomography with an
... ABSTRACT Recently, Fourier domain optical coherence tomography (FDOCT) has attracted much attention due to the significantly improved sensitivity and imaging speed compared to time domain OCT. The large depth of focus is necessary to image a long-depth-range sample with constant transverse resolutio ...
... ABSTRACT Recently, Fourier domain optical coherence tomography (FDOCT) has attracted much attention due to the significantly improved sensitivity and imaging speed compared to time domain OCT. The large depth of focus is necessary to image a long-depth-range sample with constant transverse resolutio ...
High spectral resolution multiplex CARS spectroscopy using chirped
... pump (which is usually degenerate) and ωs (the Stokes beam) generates the anti-Stokes signal at the frequency ωas = 2ωp - ωs. By tuning the energy difference ωp - ωs into a molecular resonance, usually a vibrational transition, one can achieve large enhancements in the signal. The CARS signal is dep ...
... pump (which is usually degenerate) and ωs (the Stokes beam) generates the anti-Stokes signal at the frequency ωas = 2ωp - ωs. By tuning the energy difference ωp - ωs into a molecular resonance, usually a vibrational transition, one can achieve large enhancements in the signal. The CARS signal is dep ...
Modern IR diode lasers enable novel photoacoustic sensors
... and little adaptability in combination with other chemical systems. We are studying photoacoustic spectroscopy (PAS) to improve current technologies and address the latest sensorsystem requirements. PAS is a highly sensitive technique that can be used for detection of trace levels of gases. It uses ...
... and little adaptability in combination with other chemical systems. We are studying photoacoustic spectroscopy (PAS) to improve current technologies and address the latest sensorsystem requirements. PAS is a highly sensitive technique that can be used for detection of trace levels of gases. It uses ...
PCT form - 1 - DESCRIPTION OPTICAL MEASURING DEVICE AND
... electrical structure of the nanoparticle measuring device. Figs. 7A and 7B are views for explaining the structure of a sample cell 21 shown in Fig. 6, and more specifically, Fig. 7A is a schematic front view of the sample cell 21 as seen in a laser beam irradiation direction, and Fig. 7B is a ...
... electrical structure of the nanoparticle measuring device. Figs. 7A and 7B are views for explaining the structure of a sample cell 21 shown in Fig. 6, and more specifically, Fig. 7A is a schematic front view of the sample cell 21 as seen in a laser beam irradiation direction, and Fig. 7B is a ...
A CONCEPTIONAL STUDY OF OPTICAL EARTH
... aperture dimension of CCD element and the required ground resolution are l4~m and 100 m respectively, then the focal length of telescope must be 5.32 m. The aperture will be 1 .. 32 m for F-number 5. It is very easy to get 3 degree of FOV by refractive system, but to do it with the focal length and ...
... aperture dimension of CCD element and the required ground resolution are l4~m and 100 m respectively, then the focal length of telescope must be 5.32 m. The aperture will be 1 .. 32 m for F-number 5. It is very easy to get 3 degree of FOV by refractive system, but to do it with the focal length and ...
Near-resonant spatial images of confined Bose-Einstein condensates in a 4-Dee... Lene Vestergaard Hau, B. D. Busch, Chien Liu,
... MHz in 38 s in a schedule calculated from a model based on Ref. @19#. The final rf frequency determines the final temperature, number of atoms, and condensate fraction of the cloud. To minimize trap loss, chamber pressure is kept below 1310211 Torr. In this Rapid Communication we are concerned with ...
... MHz in 38 s in a schedule calculated from a model based on Ref. @19#. The final rf frequency determines the final temperature, number of atoms, and condensate fraction of the cloud. To minimize trap loss, chamber pressure is kept below 1310211 Torr. In this Rapid Communication we are concerned with ...
CH332 Lab 4: FLUORESCENCE LIFETIME OF QUININE SULFATE
... 1. What is the value of kq? What does kq refer to? Is the quenching of quinine sulfate static or dynamic? Explain. Are you confident in your data? (include stats!) 2. Compare and contrast the two fluorescence methods used in this lab (scans vs lifetime). Be specific regarding the information obtaine ...
... 1. What is the value of kq? What does kq refer to? Is the quenching of quinine sulfate static or dynamic? Explain. Are you confident in your data? (include stats!) 2. Compare and contrast the two fluorescence methods used in this lab (scans vs lifetime). Be specific regarding the information obtaine ...
Sub-THz Electron Spin Resonance spectroscopy based on a Martin
... In its standard operation, the MP spectrometer is installed on top of an Oxford 9.4 Tesla magnet with a variable temperature insert (Fig. 3). A key feature is its mobility: The compact quasi-optical bench can be lifted off and parked aside while other experiments are carried out with the magnet [56] ...
... In its standard operation, the MP spectrometer is installed on top of an Oxford 9.4 Tesla magnet with a variable temperature insert (Fig. 3). A key feature is its mobility: The compact quasi-optical bench can be lifted off and parked aside while other experiments are carried out with the magnet [56] ...
Ru3(CO)12 Adsorption and Decomposition on TiO2
... the infrared beam path. The optics and windows are aligned such that the angle of incidence is 85° from surface normal, an ideal angle for IRAS.20 The infrared spectrometer used for data collection is a Mattson Cygnus 100 in single-beam mode using an MCT detector. All spectra collected in this study ...
... the infrared beam path. The optics and windows are aligned such that the angle of incidence is 85° from surface normal, an ideal angle for IRAS.20 The infrared spectrometer used for data collection is a Mattson Cygnus 100 in single-beam mode using an MCT detector. All spectra collected in this study ...
Stabler, Graham (2005) High resolution wide field surface plasmon
... Both Yeatman and Rothenhäusler mention the effect of SP propagation length and direction on imaging resolution in their papers. The ability to resolve objects is of key importance in microscopy so this will now be expanded upon. ...
... Both Yeatman and Rothenhäusler mention the effect of SP propagation length and direction on imaging resolution in their papers. The ability to resolve objects is of key importance in microscopy so this will now be expanded upon. ...
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... the inhomogeneous part will remain. This method has been employed successfully in absorption reconstructions to reduce the importance of accurate knowledge of the background optical properties.17 Note that in these images the f luorescent properties of the heterogeneities have been reconstructed; no ...
... the inhomogeneous part will remain. This method has been employed successfully in absorption reconstructions to reduce the importance of accurate knowledge of the background optical properties.17 Note that in these images the f luorescent properties of the heterogeneities have been reconstructed; no ...
Heterogenously integrated InP on Si microdisk lasers
... heterogeneously integrated on SOI and coupled to a Si bus waveguide. After a general introduction on the fabrication and the operation principles, we will describe various improvements in the fabrication technology. This includes improvements in the yield of the bonding of the InP die on the SOI die ...
... heterogeneously integrated on SOI and coupled to a Si bus waveguide. After a general introduction on the fabrication and the operation principles, we will describe various improvements in the fabrication technology. This includes improvements in the yield of the bonding of the InP die on the SOI die ...
Wavelength Converters in Optical Communication Systems
... to be cascaded. Experiments using SOA converters with very long cavities have, however, resulted in ...
... to be cascaded. Experiments using SOA converters with very long cavities have, however, resulted in ...
Experimental study of transmission enhancement of evanescent waves through silver
... at far field, which perturbs a portion of the original field at interface. Conventionally this can be done with lithographically patterned gratings [2], however, the obtained information would strongly deviate from that of a planar thin film due to the nonlinear coupling efficiency from the highly m ...
... at far field, which perturbs a portion of the original field at interface. Conventionally this can be done with lithographically patterned gratings [2], however, the obtained information would strongly deviate from that of a planar thin film due to the nonlinear coupling efficiency from the highly m ...
SPDM: light microscopy with single
... resolution is limited to about 200 nm laterally and 600 nm axially, meaning that cellular nanostructures cannot be adequately resolved to provide full functional information. Various recently introduced laser-optical ‘nanoscopy’ approaches permit to overcome this problem, and to extend the spatial a ...
... resolution is limited to about 200 nm laterally and 600 nm axially, meaning that cellular nanostructures cannot be adequately resolved to provide full functional information. Various recently introduced laser-optical ‘nanoscopy’ approaches permit to overcome this problem, and to extend the spatial a ...
Diffraction is…
... every point on a wavefront may be regarded as a secondary source of wavelets curved wavefront: ...
... every point on a wavefront may be regarded as a secondary source of wavelets curved wavefront: ...
High accuracy ranging with Yb -doped fiber-ring frequency
... enhances the signal-to-noise ratio while maintaining the high resolution associated with the large bandwidth of the FSF radiation. 2. Laser ranging techniques Laser-based techniques are widely used for distance measurement; for a detailed critical review of the usual techniques for distance measurem ...
... enhances the signal-to-noise ratio while maintaining the high resolution associated with the large bandwidth of the FSF radiation. 2. Laser ranging techniques Laser-based techniques are widely used for distance measurement; for a detailed critical review of the usual techniques for distance measurem ...
Resolution in Confocal Microscopy
... Rayleigh criteria [19] where we would consider the distance between the first diffraction minimum and the central maximum as being the resolution of the optical signal. Note that although there FWHM might be in the order of hundreds of nanometres, there are methods, based on biological experience, t ...
... Rayleigh criteria [19] where we would consider the distance between the first diffraction minimum and the central maximum as being the resolution of the optical signal. Note that although there FWHM might be in the order of hundreds of nanometres, there are methods, based on biological experience, t ...
Nano-optomechanical Actuator and Pull-Back Instability
... Although the normalized pull-back displacement, xp/g0, is 25.5% under the condition of Pin = 2.8 mW and kmech = 0.14 N/m, it can be increased through increasing the optical power Pin, and decreasing the mechanical spring constant kmech, as shown in Figure 3. For example, the value of xp/g0 is expect ...
... Although the normalized pull-back displacement, xp/g0, is 25.5% under the condition of Pin = 2.8 mW and kmech = 0.14 N/m, it can be increased through increasing the optical power Pin, and decreasing the mechanical spring constant kmech, as shown in Figure 3. For example, the value of xp/g0 is expect ...
Birefringence dispersion in fused silica for DUV lithography
... Shorter wavelength radiation sources and improvements in the quality of the optical materials used in microlithography stepper systems have been two of the driving forces towards production of integrated circuits with smaller feature sizes. Fused silica lens elements in current lithography tools pos ...
... Shorter wavelength radiation sources and improvements in the quality of the optical materials used in microlithography stepper systems have been two of the driving forces towards production of integrated circuits with smaller feature sizes. Fused silica lens elements in current lithography tools pos ...