References
... In Ref.[1] we also provided the exact analytical solution for in the case of gaussian speckles, either deep Fresnel speckles that are produced by a thermal source characterized by a gaussian correlation function, or VCZ speckles produced by a thermal source illuminated by a focused gaussian beam. ...
... In Ref.[1] we also provided the exact analytical solution for in the case of gaussian speckles, either deep Fresnel speckles that are produced by a thermal source characterized by a gaussian correlation function, or VCZ speckles produced by a thermal source illuminated by a focused gaussian beam. ...
High-power, continuous-wave optical parametric oscillators
... Special thanks to my uncle Satish Das and my beloved sister-in-law Nabanita. Finally, I would like to thank everybody who was important to the successful realization of thesis, as well as expressing my apology to those whom I could not mention personally one by one. ...
... Special thanks to my uncle Satish Das and my beloved sister-in-law Nabanita. Finally, I would like to thank everybody who was important to the successful realization of thesis, as well as expressing my apology to those whom I could not mention personally one by one. ...
Holographic Optical Beam-Steering (HOBS)
... (lasercom). Lasercom is superior to other methods of wireless communication with respect to data transfer rates and transmission security because it is very difficult to jam the beam or intercept data [Cadogan and Mulholland 1996; Henniger and Wilfert 2010][Ghuman and Willebrand 2002, pg. 2,5][Majum ...
... (lasercom). Lasercom is superior to other methods of wireless communication with respect to data transfer rates and transmission security because it is very difficult to jam the beam or intercept data [Cadogan and Mulholland 1996; Henniger and Wilfert 2010][Ghuman and Willebrand 2002, pg. 2,5][Majum ...
Lenses and Waves: Christiaan Huygens and the Mathematical
... configurations in telescopes, that goes by the title of Dioptrica. A second surprise is in store when one takes a closer looks to these papers on geometrical optics. The papers on dioptrics cover the Huygens’ complete scientific career and form the exclusive content of the first two decades of his o ...
... configurations in telescopes, that goes by the title of Dioptrica. A second surprise is in store when one takes a closer looks to these papers on geometrical optics. The papers on dioptrics cover the Huygens’ complete scientific career and form the exclusive content of the first two decades of his o ...
Extreme pulse-front tilt from an etalon
... even put to a good use. For example, PFT has been used to make single-shot autocorrelation measurements of many-picosecond pulses [8,9]. The PFT has also been useful for micromachining [10]. Bor et al. pointed out that less commonly used sources of dispersion, such as etalons [3], also introduce PFT ...
... even put to a good use. For example, PFT has been used to make single-shot autocorrelation measurements of many-picosecond pulses [8,9]. The PFT has also been useful for micromachining [10]. Bor et al. pointed out that less commonly used sources of dispersion, such as etalons [3], also introduce PFT ...
The Graduate School Eberly College of Science
... The predicted s-wave scattering lengths as a function of magnetic field for a |1-|5 mixture. With no Feshbach resonance, the s-wave scattering length increases to a value of approximately -3 Bohr at a magnetic field corresponding to 834.1 gauss. In this way, interactions of a two-state |1-|2 mixtu ...
... The predicted s-wave scattering lengths as a function of magnetic field for a |1-|5 mixture. With no Feshbach resonance, the s-wave scattering length increases to a value of approximately -3 Bohr at a magnetic field corresponding to 834.1 gauss. In this way, interactions of a two-state |1-|2 mixtu ...
A Michelson interferometric technique for measuring refractive index
... The optical setup for the Michelson interferometer is shown schematically in Fig. 4. Light from a Helium Neon source S (wavelength of 633nm) is deflected through a mirror M3 and strikes the beam splitter B. The beam splitter is a half-silvered glass plate (silvered on the back side) which reflects ...
... The optical setup for the Michelson interferometer is shown schematically in Fig. 4. Light from a Helium Neon source S (wavelength of 633nm) is deflected through a mirror M3 and strikes the beam splitter B. The beam splitter is a half-silvered glass plate (silvered on the back side) which reflects ...
STED Microscopy
... range) results therefore not only in much lower Psat values but also in significantly reduced photobleaching (Donnert et al., 2006), although at the expense of increased recording times. An elegant, however technically challenging, alternative is to sweep the (CW or high repetition rate) laser beams ...
... range) results therefore not only in much lower Psat values but also in significantly reduced photobleaching (Donnert et al., 2006), although at the expense of increased recording times. An elegant, however technically challenging, alternative is to sweep the (CW or high repetition rate) laser beams ...
applications of optical cavities in modern atomic, molecular
... detection for classical laser spectroscopy, nonlinear optical devices, optical frequency metrology and precision measurement, and cavity quantum electrodynamics (cavity QED). Of course the most important application of optical cavities is in laser physics itself. However, in this article we will con ...
... detection for classical laser spectroscopy, nonlinear optical devices, optical frequency metrology and precision measurement, and cavity quantum electrodynamics (cavity QED). Of course the most important application of optical cavities is in laser physics itself. However, in this article we will con ...
Multiplexed Digital Holography incorporating Speckle
... In manufacturing industry there is a high demand for on-line quality control to minimize the risk of producing defect objects. Digital holography has become faster and more reliable and is establishing itself as a method for high accuracy industrial shape measurement. One benefit is that digital hol ...
... In manufacturing industry there is a high demand for on-line quality control to minimize the risk of producing defect objects. Digital holography has become faster and more reliable and is establishing itself as a method for high accuracy industrial shape measurement. One benefit is that digital hol ...
Ray-optics cloaking devices for large objects in incoherent natural light
... hide objects roughly one wavelength large (an optical wavelength equates to the scale of single-celled organisms) have been experimentally demonstrated in both the microwave4,7,10 and optical spectrum8,9,11. Successful attempts have also been made to allow the cloaking technology to be used at much ...
... hide objects roughly one wavelength large (an optical wavelength equates to the scale of single-celled organisms) have been experimentally demonstrated in both the microwave4,7,10 and optical spectrum8,9,11. Successful attempts have also been made to allow the cloaking technology to be used at much ...
Structural, Optical, Electrical and Thermal Characterizations of Pure
... at 30˚C. This solution was stirred well for six hours constantly using magnetic stirrer and then filtered using Whatman filter paper. This solution was taken in five different beakers of 100 mL and L-alanine was added to each of the four beakers as 0.3 mol%, 0.5 mol%, 0.7 mol% and 1 mol%. After maki ...
... at 30˚C. This solution was stirred well for six hours constantly using magnetic stirrer and then filtered using Whatman filter paper. This solution was taken in five different beakers of 100 mL and L-alanine was added to each of the four beakers as 0.3 mol%, 0.5 mol%, 0.7 mol% and 1 mol%. After maki ...
Single photon detection based devices and techniques for pulsed
... Abstract In this thesis, a new type of laser diode transmitter using enhanced gain-switching suitable for use with a single photon avalanche diode (SPAD) detector was developed and tested in the pulsed time-of-flight laser range finding (lidar) application. Several laser diode versions were tested a ...
... Abstract In this thesis, a new type of laser diode transmitter using enhanced gain-switching suitable for use with a single photon avalanche diode (SPAD) detector was developed and tested in the pulsed time-of-flight laser range finding (lidar) application. Several laser diode versions were tested a ...
Nonlinear polarization effects in optical fibers: polarization attraction
... [23–25]. A key breakthrough advance for the practical usage of nonlinear lossless polarizers in telecom applications consisted in the demonstration of 10 Gbit/s on–off-keying (OOK) signal repolarization induced by a sub-Watt CW pump in a few km long span of telecom nonzero-dispersion-shifted fiber ( ...
... [23–25]. A key breakthrough advance for the practical usage of nonlinear lossless polarizers in telecom applications consisted in the demonstration of 10 Gbit/s on–off-keying (OOK) signal repolarization induced by a sub-Watt CW pump in a few km long span of telecom nonzero-dispersion-shifted fiber ( ...
Nanoconcentration of terahertz radiation in
... terahertz radiation (frequency 1 − 10 THz or vacuum wavelength λ 0 = 300 − 30 μ m). This will allow for the nanoscale spatial resolution for THz imaging [10] and introduce the THz spectroscopy on the nanoscale, taking full advantage of the rich THz spectra and submicron to nanoscale structures of ma ...
... terahertz radiation (frequency 1 − 10 THz or vacuum wavelength λ 0 = 300 − 30 μ m). This will allow for the nanoscale spatial resolution for THz imaging [10] and introduce the THz spectroscopy on the nanoscale, taking full advantage of the rich THz spectra and submicron to nanoscale structures of ma ...
Integration of Magneto Optical Traps in Atom Chips
... This thesis describes the manufacture and demonstration of microfabricated hollow pyramidal mirrors for the purposes of integrated laser cooling and trapping of atoms on an atom chip. A single incident circularly polarised laser beam is reflected inside the pyramid hollow creating all the required b ...
... This thesis describes the manufacture and demonstration of microfabricated hollow pyramidal mirrors for the purposes of integrated laser cooling and trapping of atoms on an atom chip. A single incident circularly polarised laser beam is reflected inside the pyramid hollow creating all the required b ...
Transverse and longitudinal angular momenta of light
... transformation. This enables a clear identification and separation of different kinds of AM, based on the P - and T -symmetries of the key parameters in their equations. Overall, the framed equations throughout the paper and the final Table I should provide a clear guide to and summary of the main r ...
... transformation. This enables a clear identification and separation of different kinds of AM, based on the P - and T -symmetries of the key parameters in their equations. Overall, the framed equations throughout the paper and the final Table I should provide a clear guide to and summary of the main r ...