Introductory Quantum Optics
... Our aim was to write an elementary book on the essentials of quantum optics directed to an audience of upper-level undergraduates, assumed to have suffered through a course in quantum mechanics, and for first- or second-year graduate students interested in eventually pursuing research in this area. ...
... Our aim was to write an elementary book on the essentials of quantum optics directed to an audience of upper-level undergraduates, assumed to have suffered through a course in quantum mechanics, and for first- or second-year graduate students interested in eventually pursuing research in this area. ...
Role of wavefront aberrations of amplified femtosecond pulses in
... 1.1.1 The chirped pulse amplification technique ..................................................................... 18 1.1.2 A revolution in physics ................................................................................................... 20 1.1.3 Towards a promising future ............. ...
... 1.1.1 The chirped pulse amplification technique ..................................................................... 18 1.1.2 A revolution in physics ................................................................................................... 20 1.1.3 Towards a promising future ............. ...
sensors Chemical Sensing Using Fiber Cavity Ring-Down Spectroscopy
... be carefully aligned to reduce the losses due to the liquid, the interfaces and the sample containers. For very small liquid samples that are relevant to e.g., high-performance liquid chromatography (HPLC) and capillary electrophoresis, there is no benefit in using large cavity volumes, and cavities ...
... be carefully aligned to reduce the losses due to the liquid, the interfaces and the sample containers. For very small liquid samples that are relevant to e.g., high-performance liquid chromatography (HPLC) and capillary electrophoresis, there is no benefit in using large cavity volumes, and cavities ...
DETERMINING SPATIAL MODES OF SEMICONDUCTOR LASERS
... 4.20 (Left) The transverse spatial mode of the 5 m stripe width laser extracted by singular value decomposition (circles). (Right) The corresponding intensity profile (circles) compared to the measured intensity (pluses). . . . . 96 4.21 (Left) The lateral spatial modes of the 5 m stripe width laser ...
... 4.20 (Left) The transverse spatial mode of the 5 m stripe width laser extracted by singular value decomposition (circles). (Right) The corresponding intensity profile (circles) compared to the measured intensity (pluses). . . . . 96 4.21 (Left) The lateral spatial modes of the 5 m stripe width laser ...
Optical Methods for Tympanic Membrane Characterisation Towards Objective Otoscopy in Otitis Media
... with mucous middle ear effusion (p < 0.05). A new technique for surface shape assessment based on an on-axis dual fibre array incorporated in an otoscope was developed and evaluated in ear models and on tympanic membranes from harvested temporal bones. The technique utilises the combined effects of ...
... with mucous middle ear effusion (p < 0.05). A new technique for surface shape assessment based on an on-axis dual fibre array incorporated in an otoscope was developed and evaluated in ear models and on tympanic membranes from harvested temporal bones. The technique utilises the combined effects of ...
Pulsed photoacoustic techniques and glucose determination in
... Determination of blood glucose level is a frequently occurring procedure in diabetes care. As the most common method involves collecting blood drops for chemical analysis, it is invasive and liable to afflict a degree of pain and cause a skin injury. To eliminate these disadvantages, this thesis foc ...
... Determination of blood glucose level is a frequently occurring procedure in diabetes care. As the most common method involves collecting blood drops for chemical analysis, it is invasive and liable to afflict a degree of pain and cause a skin injury. To eliminate these disadvantages, this thesis foc ...
High-power, continuous-wave optical parametric oscillators
... visible to the near-infrared (near-IR). While lasers have been in use for nearly 50 years, it is still difficult to develop laser systems that can cover many regions of the optical spectrum, from the ultraviolet (UV) and visible to the near- and mid-infrared wavelength range, with potential applicat ...
... visible to the near-infrared (near-IR). While lasers have been in use for nearly 50 years, it is still difficult to develop laser systems that can cover many regions of the optical spectrum, from the ultraviolet (UV) and visible to the near- and mid-infrared wavelength range, with potential applicat ...
Optical Time Domain Reflectometry (OTDR)
... The complete setup for measuring the optical time domain reflectometry is illustrated in Fig. 4. The setup is mounted on two optical rails (1) with scales for positioning of the components. (2) is the laser diode with the corresponding power supply (3). The laser beam is collimated by microscope obj ...
... The complete setup for measuring the optical time domain reflectometry is illustrated in Fig. 4. The setup is mounted on two optical rails (1) with scales for positioning of the components. (2) is the laser diode with the corresponding power supply (3). The laser beam is collimated by microscope obj ...
Coatings - CVI Laser Optics
... is to modify the reflection and transmission properties of the components’ surfaces. Whenever light passes from one medium into a medium with different optical properties (most notably refractive index), part of the light is reflected and part of the light is transmitted. The intensity ratio of the ...
... is to modify the reflection and transmission properties of the components’ surfaces. Whenever light passes from one medium into a medium with different optical properties (most notably refractive index), part of the light is reflected and part of the light is transmitted. The intensity ratio of the ...
Photonic laser thruster
A photonic laser thruster is an amplified laser thruster that generates thrust directly from the laser photon momentum, rather than laser-heating propellant. The concept of single-bounce laser-pushed lightsails that utilize the photon momentum was first developed in the 1960s, however, its conversion of laser power to thrust is highly inefficient, thus has been considered impractical. Over 50 years, there had been numerous theoretical and experimental efforts to increase the conversion efficiency by recycling photons, bouncing them repetitively between two reflective mirrors in an empty optical cavity, without success. In December 2006, Young Bae successfully solved this problem and demonstrated the conversion efficiency enhancement by a factor of 100 and a photon thrust of 35 micronewtons by putting the laser energizing media between the two mirrors as in typical lasers, and the photonic laser thruster was born. In August 2015, the photonic laser thruster was demonstrated to increase the conversion efficiency enhancement by a factor over 1,000 and to achieve a photon thrust of 3.5 millinewtons at Y.K. Bae Corporation. In addition, Propelling, slowing and stopping of a small satellite, 1U CubeSat, in simulated zero-gravity were demonstrated. The photonic laser thruster was initially developed for use in nanometer precision spacecraft formation, for forming ultralarge space telescopes and radars. The photonic laser thruster is currently developed for high-precision and high-speed maneuver of small spacecraft, such as formation flying, orbit adjustments, drag compensation, and rendezvous and docking. The photonic laser thruster can be used for beaming thrust from a conventional heavy resource vehicle to a more expensive & lightweight mission vehicle, similar to tankers in aerial refueling.The practical usage of the photonic laser thruster for main space propulsion would require extremely high laser powers and overcoming technological challenges in achieving the laser power and fabricating the required optics. Photonic laser thrusters have a very high specific impulse, and can permit spacecraft reach much higher speeds than with conventional rockets, which are limited by the Tsiolkovsky rocket equation. If the photonic laser thruster is scalable for the use in such main space propulsion, multiple photonic laser thrusters can be used to construct a 'photonic railway' that has been proposed as a potential permanent transport infrastructure for interplanetary or interstellar commutes, allowing the transport craft themselves to carry very little fuel.