Holography
... Now you’ve been introduced to different configurations of holograms (on-axis, off-axis, reflection, transmission). Use one configuration you like to produce a hologram of a small rigid object (coins for example) and read out the image after development. ...
... Now you’ve been introduced to different configurations of holograms (on-axis, off-axis, reflection, transmission). Use one configuration you like to produce a hologram of a small rigid object (coins for example) and read out the image after development. ...
Bandgap-assisted surface-plasmon sensing Arnaud J. Benahmed* and Chih-Ming Ho
... dispersion relation. We recognize that the high density of modes on the edge of the surface-plasmon bandgap permits the coupling of a wider range of incidence angles of excitation photons to surfaceplasmon polaritons than what is possible in the traditional Kretschmann configuration. Here, the numer ...
... dispersion relation. We recognize that the high density of modes on the edge of the surface-plasmon bandgap permits the coupling of a wider range of incidence angles of excitation photons to surfaceplasmon polaritons than what is possible in the traditional Kretschmann configuration. Here, the numer ...
Normal-Incidence Photoemission Electron Microscopy (NI
... of the SPP and the laser can then be discussed as three principal cases. For the case of positions like the one marked by “A” in Fig. 4, the fields of the laser pulse and the SPP are always of the same phase, which will result in constructive interference. One will find the largest electron yield at ...
... of the SPP and the laser can then be discussed as three principal cases. For the case of positions like the one marked by “A” in Fig. 4, the fields of the laser pulse and the SPP are always of the same phase, which will result in constructive interference. One will find the largest electron yield at ...
Aalborg Universitet Transfer function and near-field detection of evanescent waves
... distribution can be decomposed into two orthogonally polarized fiber modes, whose amplitudes we shall denote as Ax and Ay. It should be mentioned in passing that the origin of the probed field [see Eq. (1)] is irrelevant in this consideration and that the sample surface serves merely as a reference ...
... distribution can be decomposed into two orthogonally polarized fiber modes, whose amplitudes we shall denote as Ax and Ay. It should be mentioned in passing that the origin of the probed field [see Eq. (1)] is irrelevant in this consideration and that the sample surface serves merely as a reference ...
Optical study of lead borosilicate glasses
... ions such as Pb2 + , etc., which are influenced by the glass matrix. It was shown that both intrinsic and extrinsic absorption are important for elucidating UV radiation-induced defects in the glasses (View Record in Scopus: cited in Scopus (57)) [22]. Also, the refractive index is closely related to ...
... ions such as Pb2 + , etc., which are influenced by the glass matrix. It was shown that both intrinsic and extrinsic absorption are important for elucidating UV radiation-induced defects in the glasses (View Record in Scopus: cited in Scopus (57)) [22]. Also, the refractive index is closely related to ...
Aberration-free three-dimensional multiphoton imaging of neuronal
... of neurons. However, direct electrical recordings from thin dendrites and simultaneous recordings from multiple identified neurons are difficult to achieve and often not feasible, especially in the in vivo setting. Instead, optical sectioning techniques using two-photon excitation of fluorescent ind ...
... of neurons. However, direct electrical recordings from thin dendrites and simultaneous recordings from multiple identified neurons are difficult to achieve and often not feasible, especially in the in vivo setting. Instead, optical sectioning techniques using two-photon excitation of fluorescent ind ...
optical design of an echelle grating based atomic emission
... lines/mm, a ruled area of 254 mm X 128 mm, and a blaze angle of 740. The entrance slit is a square aperture of 40 µm X 40 µm. Mirrors M1 and M2 are 250 mm and 175 mm focal length respectively with aluminium high reflection coatings. The Littrow prism is 35 X 70 X 40 mm3 made of fused silica with alu ...
... lines/mm, a ruled area of 254 mm X 128 mm, and a blaze angle of 740. The entrance slit is a square aperture of 40 µm X 40 µm. Mirrors M1 and M2 are 250 mm and 175 mm focal length respectively with aluminium high reflection coatings. The Littrow prism is 35 X 70 X 40 mm3 made of fused silica with alu ...
Observation of transverse interference fringes on an atom laser beam
... but rather in an excited state containing 20 eV of energy. This large internal energy is enough to liberate electrons from a surface when struck by the atom, making detection of single metastable atoms possible. It is this single atom detection property that makes a metastable atom laser not only a ...
... but rather in an excited state containing 20 eV of energy. This large internal energy is enough to liberate electrons from a surface when struck by the atom, making detection of single metastable atoms possible. It is this single atom detection property that makes a metastable atom laser not only a ...
Modulation instability for a relaxational Kerr medium Xue Liu , S.M. Shahriar
... domain. MI was first studied with coherent light beam in one dimensional self-focusing medium [8]. Later research shows that MI is also found in incoherent beams [9]. Recent studies show that spatial MI can exist in both self-focusing and self-defocusing medium if the nonlinearity is non-instantaneou ...
... domain. MI was first studied with coherent light beam in one dimensional self-focusing medium [8]. Later research shows that MI is also found in incoherent beams [9]. Recent studies show that spatial MI can exist in both self-focusing and self-defocusing medium if the nonlinearity is non-instantaneou ...
polygonal mirror laser scanning heads: characteristic functions
... dimensional (2D) PM plus GS devices, where the PM produces fast scan lines that are precisely positioned by the GS (as an alternative to dual axis GSs) [18]; (iv) double prismatic PMs for generating short laser impulses; (v) double pyramidal PMs (a normal one inside a similar pyramidal cavity) for O ...
... dimensional (2D) PM plus GS devices, where the PM produces fast scan lines that are precisely positioned by the GS (as an alternative to dual axis GSs) [18]; (iv) double prismatic PMs for generating short laser impulses; (v) double pyramidal PMs (a normal one inside a similar pyramidal cavity) for O ...
3.4 Laboratory Chemical Storage and Inventory Proper storage of
... Proper storage of chemicals in laboratories is always a major concern. Chemicals that have been stored improperly could react, forming hazardous products. Sometimes improper storage results only in disorder, but at other times, it has resulted in loss of life and property. Each department is respons ...
... Proper storage of chemicals in laboratories is always a major concern. Chemicals that have been stored improperly could react, forming hazardous products. Sometimes improper storage results only in disorder, but at other times, it has resulted in loss of life and property. Each department is respons ...
Chapter 36 . Optical Properties of Semiconductors
... because of the many-body nature of the particle interactions which necessitates understanding excitons, electron-hole droplets, polarons, polaritons, etc. The optical properties of semiconductors cover a wide range of phenomena which are impossible to do justice to in just one short chapter in this ...
... because of the many-body nature of the particle interactions which necessitates understanding excitons, electron-hole droplets, polarons, polaritons, etc. The optical properties of semiconductors cover a wide range of phenomena which are impossible to do justice to in just one short chapter in this ...
workshop on laser-matter interaction 2010
... We are 63 registered participants and received 65 contributions. Among those, 44 have been selected for oral sessions and 16 for the poster session. The sessions have been organized into three 30 minutes tutorials, forty one 20 minutes talks and sixteen posters. We tried to mostly follow the partici ...
... We are 63 registered participants and received 65 contributions. Among those, 44 have been selected for oral sessions and 16 for the poster session. The sessions have been organized into three 30 minutes tutorials, forty one 20 minutes talks and sixteen posters. We tried to mostly follow the partici ...
Chapter 30 . Optical Testing
... screen. Not only is this information lost, but the integration results will be false if the localized errors are large. The second important problem of the Hartmann test is that it is very time consuming, due to the time used in measuring all the data points on the Hartmann plate. These problems are ...
... screen. Not only is this information lost, but the integration results will be false if the localized errors are large. The second important problem of the Hartmann test is that it is very time consuming, due to the time used in measuring all the data points on the Hartmann plate. These problems are ...
Subnanometer-accuracy optical distance ruler based on fluorescence quenching by transparent conductors R
... ITO, was observed for the commercially available fluorescent label Alexa Fluor 430. The found dependency of the lifetime on the distance is shown in Fig. 3(b), where the effective dipole distance of the emitter from the alumina layer was found to be 0.54 0.05 nm (see Supplement 1, Section 5). Our ...
... ITO, was observed for the commercially available fluorescent label Alexa Fluor 430. The found dependency of the lifetime on the distance is shown in Fig. 3(b), where the effective dipole distance of the emitter from the alumina layer was found to be 0.54 0.05 nm (see Supplement 1, Section 5). Our ...
Engineering biphoton wave packets with an electromagnetically
... of an electromagnetically induced grating (EIG) [23,24]. EIG has been experimentally demonstrated in cold atoms [25,26] and has been applied to all optical switching and routing in hot atomic vapors [27]. Here, we show that, by spatially modulating the control beams, alternating regions of high tran ...
... of an electromagnetically induced grating (EIG) [23,24]. EIG has been experimentally demonstrated in cold atoms [25,26] and has been applied to all optical switching and routing in hot atomic vapors [27]. Here, we show that, by spatially modulating the control beams, alternating regions of high tran ...
Effect of optical basicity and energy transfer on near
... peak band around 1300nm is ascribed in Bi+ ion NIR emitting centre. The peak band around 1030nm emission is characteristic luminescence of Yb3+: 2F52– 2F72 energy levels transition. The result implies that energy transfer progress from Bi+ ions to Yb3+ ions might be occurred under 808nm excitation ...
... peak band around 1300nm is ascribed in Bi+ ion NIR emitting centre. The peak band around 1030nm emission is characteristic luminescence of Yb3+: 2F52– 2F72 energy levels transition. The result implies that energy transfer progress from Bi+ ions to Yb3+ ions might be occurred under 808nm excitation ...
The Optical Resonator
... § All the modes would have comparable Q in the 3D resonator – To be avoided in a laser as it would cause all the atoms to emit power into a large number of modes (would differ in their frequency and spatial characteristics) § Large, open resonators consisting of opposite flat/curved reflectors mus ...
... § All the modes would have comparable Q in the 3D resonator – To be avoided in a laser as it would cause all the atoms to emit power into a large number of modes (would differ in their frequency and spatial characteristics) § Large, open resonators consisting of opposite flat/curved reflectors mus ...
OPTICS OF ANISOTROPIC LAYERED MEDIA: A
... waveguide suffers from the serious difficulty of solving an eigenvalue problem involving a large number of simultaneous linear equations. A systematic approach is to use the matrix method described in section 3 which involves the ~nipulation of 4 X 4 matrices. As a result of successive matrix multip ...
... waveguide suffers from the serious difficulty of solving an eigenvalue problem involving a large number of simultaneous linear equations. A systematic approach is to use the matrix method described in section 3 which involves the ~nipulation of 4 X 4 matrices. As a result of successive matrix multip ...
4 Modeling of SVE fields in WaveTrain
... 0 , and also with respect to an averaging time to be discussed below. Fields given by Equation (2) are polychromatic. When the modulations are slow, the fields are sometimes called “quasi-monochromatic”. A special case that will be of interest below is a set of (two or more) discrete, closely-spac ...
... 0 , and also with respect to an averaging time to be discussed below. Fields given by Equation (2) are polychromatic. When the modulations are slow, the fields are sometimes called “quasi-monochromatic”. A special case that will be of interest below is a set of (two or more) discrete, closely-spac ...
Chapter 1 Calibration of a UV/VIS Spectrometer
... have to be removed from all subsequent spectra of the solutions. The instrument can generally remove the blank from the subsequent sample spectra automatically. The blank is also used to obtain the reading for Io , the initial intensity of light. After recording the blank, continue with the lowest c ...
... have to be removed from all subsequent spectra of the solutions. The instrument can generally remove the blank from the subsequent sample spectra automatically. The blank is also used to obtain the reading for Io , the initial intensity of light. After recording the blank, continue with the lowest c ...
High resolution time-resolved imaging system in the
... A Vacuum ultraviolet (VUV) refers to the wavelength ranges from 10 to 200 nm. The name originated from the fact that the spectral region is absorbed by air. The light in the VUV range should be used in a vacuum environment. The VUV radiations can be utilized for both bare and patterned wafer inspect ...
... A Vacuum ultraviolet (VUV) refers to the wavelength ranges from 10 to 200 nm. The name originated from the fact that the spectral region is absorbed by air. The light in the VUV range should be used in a vacuum environment. The VUV radiations can be utilized for both bare and patterned wafer inspect ...
3D optical data storage
3D optical data storage is the term given to any form of optical data storage in which information can be recorded and/or read with three-dimensional resolution (as opposed to the two-dimensional resolution afforded, for example, by CD).This innovation has the potential to provide petabyte-level mass storage on DVD-sized discs (120mm). Data recording and readback are achieved by focusing lasers within the medium. However, because of the volumetric nature of the data structure, the laser light must travel through other data points before it reaches the point where reading or recording is desired. Therefore, some kind of nonlinearity is required to ensure that these other data points do not interfere with the addressing of the desired point.No commercial product based on 3D optical data storage has yet arrived on the mass market, although several companies are actively developing the technology and claim that it may become available ""soon"".