Distributed-gain measurements of erbium
... Figure 2 shows the small signal gain curves of a 80 m long fiber obtained from the OFDR measurement of the Rayleigh backscattering signal. Here the probe power was -40 dBm, and the curves clearly shows that the optimum length is strongly dependent of the pump power, the optimum length being 40 m for ...
... Figure 2 shows the small signal gain curves of a 80 m long fiber obtained from the OFDR measurement of the Rayleigh backscattering signal. Here the probe power was -40 dBm, and the curves clearly shows that the optimum length is strongly dependent of the pump power, the optimum length being 40 m for ...
Analyzing Differences in Bacterial Optical Density Measurements
... The variation in optical density observed between two instruments can make standardization of a protocol difficult. This is especially true when one laboratory tries to replicate data from another lab, but uses a different spectrophotometer, or when an aging spectrophotometer is replaced in the same ...
... The variation in optical density observed between two instruments can make standardization of a protocol difficult. This is especially true when one laboratory tries to replicate data from another lab, but uses a different spectrophotometer, or when an aging spectrophotometer is replaced in the same ...
Lights, action: optical tweezers
... Fresnel re¯ections and corresponding recoil forces are small and in the main are ignored. Figure 1 shows the refraction of light rays at the surface of a dielectric sphere and the resulting forces acting upon it. By adopting an approac h similar to that of a ray-tracing package used for lens design, ...
... Fresnel re¯ections and corresponding recoil forces are small and in the main are ignored. Figure 1 shows the refraction of light rays at the surface of a dielectric sphere and the resulting forces acting upon it. By adopting an approac h similar to that of a ray-tracing package used for lens design, ...
Experimental realization of three-color entanglement at optical fiber
... NOPO2). For generating the multi-color entangled state satisfying different frequency requirements the wavelength difference between the signal and the idler optical beams produced by NOPOs is large usually. The large wavelength difference must result in a large walk-off effect between the two beams ...
... NOPO2). For generating the multi-color entangled state satisfying different frequency requirements the wavelength difference between the signal and the idler optical beams produced by NOPOs is large usually. The large wavelength difference must result in a large walk-off effect between the two beams ...
Lumalive Evaluation Kit
... Incorporation of Lumalive into fabric items Sample fabrics are included in this Evaluation Kit to illustrate how the Lumalive display panel should be incorporated into a layered fabric item. A product designer aiming to do so should take several factors into account in the choice of fabrics that ar ...
... Incorporation of Lumalive into fabric items Sample fabrics are included in this Evaluation Kit to illustrate how the Lumalive display panel should be incorporated into a layered fabric item. A product designer aiming to do so should take several factors into account in the choice of fabrics that ar ...
ChE 393 Course Notes
... “Excimer” = “Excited dimer”: a noble gas and a halogen form a well-defined molecule in the excited state that lives briefly before it decays into the largely repulsive ground state. Electronic diagram: ...
... “Excimer” = “Excited dimer”: a noble gas and a halogen form a well-defined molecule in the excited state that lives briefly before it decays into the largely repulsive ground state. Electronic diagram: ...
50 GHz Velocity-matched, Broad Wavelength LiNbO3
... ground plane whose width is only slightly larger than either the hot electrode width or gap. Decreasing the ground plane width increases both the impedance and the microwave velocity. This introduces an extra degree of freedom which allows exact matching of the optical and microwave index at a reaso ...
... ground plane whose width is only slightly larger than either the hot electrode width or gap. Decreasing the ground plane width increases both the impedance and the microwave velocity. This introduces an extra degree of freedom which allows exact matching of the optical and microwave index at a reaso ...
Integration of a semiconductor laser source on silicon
... • Gain material - in which the light is produced. • Contact material - to provide charge carriers to be injected into the gain material. • Reflectors - to trap the light inside the gain material. • Access waveguides - to guide the light out of the gain material. • Grating couples - to diffract light ...
... • Gain material - in which the light is produced. • Contact material - to provide charge carriers to be injected into the gain material. • Reflectors - to trap the light inside the gain material. • Access waveguides - to guide the light out of the gain material. • Grating couples - to diffract light ...
Transparent Waveplate (Retarder) - Sumitomo Electric Industries, Ltd.
... To design the waveplate, the output angle β was set to 45 degrees considering the diameter of the induced laser beam, the required thickness of the ZnSe material, and the design difficulty in optical coatings. By substituting the refraction index (n = 2.409) of ZnSe at wavelength 9.6 µm and the outp ...
... To design the waveplate, the output angle β was set to 45 degrees considering the diameter of the induced laser beam, the required thickness of the ZnSe material, and the design difficulty in optical coatings. By substituting the refraction index (n = 2.409) of ZnSe at wavelength 9.6 µm and the outp ...
Research on the Design of an Optical Information Storage Sensing
... To be compatible with the multilayer disc structure, the DOE is designed so that the zeroth-order beam focuses on the servo layer for focusing and tracking, while the first-order diffraction beams focuses on the recording layer. The two beams are controlled and focus on the corresponding layers inde ...
... To be compatible with the multilayer disc structure, the DOE is designed so that the zeroth-order beam focuses on the servo layer for focusing and tracking, while the first-order diffraction beams focuses on the recording layer. The two beams are controlled and focus on the corresponding layers inde ...
Optical and magneto-optical properties of UPtGe
... crystallographic directions for three single crystals cut perpendicular to the main axes. One clearly recognizes the particular behavior when the magnetic field is aligned parallel to the b axis. This singularity is also manifest in the dielectric function which was determined by optical ellipsometr ...
... crystallographic directions for three single crystals cut perpendicular to the main axes. One clearly recognizes the particular behavior when the magnetic field is aligned parallel to the b axis. This singularity is also manifest in the dielectric function which was determined by optical ellipsometr ...
Orbital rotation without orbital angular momentum
... where E∗ ⋅ ( ∇ ) E = Ex∗∇Ex + E y∗∇E y + Ez∗∇Ez . The particular properties of the SMD and OMD contributions [Eq. (2)] reflect specific features of the “intrinsic” rotation associated with the spin of photons ( p S ) and of the macroscopic energy transfer ( pO ) in a light field. The quantities intr ...
... where E∗ ⋅ ( ∇ ) E = Ex∗∇Ex + E y∗∇E y + Ez∗∇Ez . The particular properties of the SMD and OMD contributions [Eq. (2)] reflect specific features of the “intrinsic” rotation associated with the spin of photons ( p S ) and of the macroscopic energy transfer ( pO ) in a light field. The quantities intr ...
Lead Inventor: Serge Luryi, Ph.D., Distinguished Professor
... Professor, Department of Electrical & Computer Engineering, utilizes uniaxially patterned dielectric layers having an optical anisotropy that can be dynamically controlled. Performance properties are not dependant upon the geometrical rigidity of the structure (the long-range order of the pores or t ...
... Professor, Department of Electrical & Computer Engineering, utilizes uniaxially patterned dielectric layers having an optical anisotropy that can be dynamically controlled. Performance properties are not dependant upon the geometrical rigidity of the structure (the long-range order of the pores or t ...
Barium Ions for Quantum Computation
... If tuned to the P1/2 transition, ultrafast Rabi flops could be made to apply a state dependent impulse on the ion, which would allow us to perform ultrafast gates, such as the García-Ripoll phase gate [21], on two ions in the same trap. The benefits of such a gate are its intrinsic speed and that it ...
... If tuned to the P1/2 transition, ultrafast Rabi flops could be made to apply a state dependent impulse on the ion, which would allow us to perform ultrafast gates, such as the García-Ripoll phase gate [21], on two ions in the same trap. The benefits of such a gate are its intrinsic speed and that it ...
Time-domain optical data storage by use of Raman coherent population trapping
... for information storage12 and processing.3'4 This is due to the fast response and high storage capacity that can be achieved by use of these techniques with existing cryogenic doped crystals. The frequency(or time-) domain storage capacities in these materials is given by the ratio of optical inhomo ...
... for information storage12 and processing.3'4 This is due to the fast response and high storage capacity that can be achieved by use of these techniques with existing cryogenic doped crystals. The frequency(or time-) domain storage capacities in these materials is given by the ratio of optical inhomo ...
Rev.Sci.Instrum.
... layer system. In favorable cases the thickness can be determined to within sub-nm accuracy. Despite the apparent similarities between these techniques as far as the parameters measured are concerned, individual features of each technique can be exploited for a given experimental task. Due to each me ...
... layer system. In favorable cases the thickness can be determined to within sub-nm accuracy. Despite the apparent similarities between these techniques as far as the parameters measured are concerned, individual features of each technique can be exploited for a given experimental task. Due to each me ...
Versatile two-dimensional potentials for ultra
... about the superfluid behavior of these systems. The observation of persistent currents with a BEC requires the construction and loading of a toroidal shaped trap. A large number of theoretical papers on BEC in toroidal traps have been written over the last ten years, and a number of proposals and de ...
... about the superfluid behavior of these systems. The observation of persistent currents with a BEC requires the construction and loading of a toroidal shaped trap. A large number of theoretical papers on BEC in toroidal traps have been written over the last ten years, and a number of proposals and de ...
CMP4203 Lasers and Photonics
... The content is designed to provide the foundations with which the operation of laser devices may be understood at the mechanistic level. Together with skills acquired in related courses in the Computer Engineering degree program, this provides the student with the skill base to approach the next lev ...
... The content is designed to provide the foundations with which the operation of laser devices may be understood at the mechanistic level. Together with skills acquired in related courses in the Computer Engineering degree program, this provides the student with the skill base to approach the next lev ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.