Picosecond-pulse amplification with an external passive optical cavity
... require pulse energies as high as several millijoules and would benefit from higher repetition rates. Ti:sapphire regenerative amplifiers are capable of generating high-repetition-rate pulse trains (250 kHz) with microjoule pulse energies.2 Alternatively, pulses with moderate energies have been obta ...
... require pulse energies as high as several millijoules and would benefit from higher repetition rates. Ti:sapphire regenerative amplifiers are capable of generating high-repetition-rate pulse trains (250 kHz) with microjoule pulse energies.2 Alternatively, pulses with moderate energies have been obta ...
Supernormal vision and high-resolution retinal imaging through
... will provide a new way to study neural limits on spatial vision that are otherwise confounded with the eye’s optical blur. It may eventually lead to techniques to enhance visual performance beyond that provided by current spectacles and contact lenses. In addition, improving the eye’s optical qualit ...
... will provide a new way to study neural limits on spatial vision that are otherwise confounded with the eye’s optical blur. It may eventually lead to techniques to enhance visual performance beyond that provided by current spectacles and contact lenses. In addition, improving the eye’s optical qualit ...
Changes in spatial extent and peak double optical density of human
... macular degeneration [7–9]. Macular pigment optical density (MPOD) has been demonstrated to increase after diets rich in zeaxanthin and lutein [10–16]. Measurements of MPOD as a function of age have been carried out using different techniques. Some studies using fundus reflectance spectroscopy found ...
... macular degeneration [7–9]. Macular pigment optical density (MPOD) has been demonstrated to increase after diets rich in zeaxanthin and lutein [10–16]. Measurements of MPOD as a function of age have been carried out using different techniques. Some studies using fundus reflectance spectroscopy found ...
Phase change phenomena during high power laser
... laser fluences since evaporation occurs earlier at higher fluences. It can be seen that the plume generation time obtained in this experiment matches with that measured by the optical deflection technique during the velocity measurement. For certain laser intensity, the transmissivity of the plume d ...
... laser fluences since evaporation occurs earlier at higher fluences. It can be seen that the plume generation time obtained in this experiment matches with that measured by the optical deflection technique during the velocity measurement. For certain laser intensity, the transmissivity of the plume d ...
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... mechanically attached to it with a spacing of 30 mm. The diameter and thickness of the wafer were 50 mm and 350 µm, respectively. Pulsed electrical voltage of 8 kV with a pulse duration of 1 µs and repetition rate of 1 kHz was applied to the electrodes synchronously with the pump laser pulse. Regene ...
... mechanically attached to it with a spacing of 30 mm. The diameter and thickness of the wafer were 50 mm and 350 µm, respectively. Pulsed electrical voltage of 8 kV with a pulse duration of 1 µs and repetition rate of 1 kHz was applied to the electrodes synchronously with the pump laser pulse. Regene ...
Characterization of a 90° waveguide bend using near-field scanning optical microscopy
... propagation loss, spatial mode profiles, and modal interference.3–8 The NSOM instrument used is an ␣-NSOM system from WiTec that is able to simultaneously measure light intensity and surface height. The system has a lateralscanning resolution of approximately 10 nm. It relies on a microfabricated ho ...
... propagation loss, spatial mode profiles, and modal interference.3–8 The NSOM instrument used is an ␣-NSOM system from WiTec that is able to simultaneously measure light intensity and surface height. The system has a lateralscanning resolution of approximately 10 nm. It relies on a microfabricated ho ...
Focal shift of silicon microlen array in mid
... literature that studied this phenomenon in the mid-infrared (MIR), where the applied wavelength was about several times longer than visible counterparts. In this case these devices are more likely to be effected by near field diffraction and scattering, and lead to deterioration of focal properties ...
... literature that studied this phenomenon in the mid-infrared (MIR), where the applied wavelength was about several times longer than visible counterparts. In this case these devices are more likely to be effected by near field diffraction and scattering, and lead to deterioration of focal properties ...