EXPERIMENT 06 Helium Neon Laser
... the excitation and laser processes at a wavelength of 632 nm are indicated. The left side of the representation shows the lower levels of the helium atoms. Observe how the energy scale is interrupted and that there is a larger difference in energy in the recombination process than is evident in the ...
... the excitation and laser processes at a wavelength of 632 nm are indicated. The left side of the representation shows the lower levels of the helium atoms. Observe how the energy scale is interrupted and that there is a larger difference in energy in the recombination process than is evident in the ...
Quantum imaging and information
... the potential for practical use in metrology or measurement based communication technology. The research I present aims to answer the question: What are practical applications of these effects and what are the limits of those applications? It is often the case when dealing with complex problems that ...
... the potential for practical use in metrology or measurement based communication technology. The research I present aims to answer the question: What are practical applications of these effects and what are the limits of those applications? It is often the case when dealing with complex problems that ...
Chapter 4 Optical Resonator
... 1. Resonance Frequencies of a Resonator with an Etalon. (a) Determine the spacing between adjacent resonance frequencies in a resonator constructed of two parallel planar mirrors separated by a distance d = 15 cm in air (n = 1). (b) A transparent plate of thickness d, = 2.5 cm and refractive index n ...
... 1. Resonance Frequencies of a Resonator with an Etalon. (a) Determine the spacing between adjacent resonance frequencies in a resonator constructed of two parallel planar mirrors separated by a distance d = 15 cm in air (n = 1). (b) A transparent plate of thickness d, = 2.5 cm and refractive index n ...
Michelson Interferometer
... small amount ∆λ, such as the orange-yellow sodium D lines, there will be two fringe systems superimposed which are very similar but not identical. For some mirror positions, where 2d is an integer number of wavelengths for both components, the fringes will coincide over a good range of θ and will lo ...
... small amount ∆λ, such as the orange-yellow sodium D lines, there will be two fringe systems superimposed which are very similar but not identical. For some mirror positions, where 2d is an integer number of wavelengths for both components, the fringes will coincide over a good range of θ and will lo ...
Phase change phenomena during high power laser
... where sf (t) and sb (t) are, respectively, the shock history at the front and the back face of the transducer. Fig. 4 shows the detailed assembly of the target and PVDF transducer. The target is a 242 mm-thick nickel foil (99.95% purity). Before taking data at a laser fluence, the target surface is ...
... where sf (t) and sb (t) are, respectively, the shock history at the front and the back face of the transducer. Fig. 4 shows the detailed assembly of the target and PVDF transducer. The target is a 242 mm-thick nickel foil (99.95% purity). Before taking data at a laser fluence, the target surface is ...
The Intermediate Optical System of Laser
... however, be easily generated by adding further optical elements. The image of a second mirror may then be formed on the first mirror. If the two mirrors move the beam in orthogonal directions, the object is scanned along orthogonal x and y axes. What happens with the light emitted from the spot illu ...
... however, be easily generated by adding further optical elements. The image of a second mirror may then be formed on the first mirror. If the two mirrors move the beam in orthogonal directions, the object is scanned along orthogonal x and y axes. What happens with the light emitted from the spot illu ...
Absolute Specular Reflectance Measurements at Fixed
... The VN design offers several advantages over other absolute specular reflectance devices as well. Unlike the expensive variable angle accessories, the PELA 6000 series offers measurement capability at key beam angles, which are available alone or in combination with other angles. The VN accessories ...
... The VN design offers several advantages over other absolute specular reflectance devices as well. Unlike the expensive variable angle accessories, the PELA 6000 series offers measurement capability at key beam angles, which are available alone or in combination with other angles. The VN accessories ...
Structure of Optical Vortices
... traps, in this case a single optical vortex. The same lens also forms images of trapped particles that are relayed to an attached video camera through a dichroic mirror. The SLM can shift the light’s phase to any of 150 distinct levels in the range 0 ≤ ϕ ≤ 2π radians at each 40 µm wide pixel in a 48 ...
... traps, in this case a single optical vortex. The same lens also forms images of trapped particles that are relayed to an attached video camera through a dichroic mirror. The SLM can shift the light’s phase to any of 150 distinct levels in the range 0 ≤ ϕ ≤ 2π radians at each 40 µm wide pixel in a 48 ...
Laser beam profiler
A laser beam profiler captures, displays, and records the spatial intensity profile of a laser beam at a particular plane transverse to the beam propagation path. Since there are many types of lasers — ultraviolet, visible, infrared, continuous wave, pulsed, high-power, low-power — there is an assortment of instrumentation for measuring laser beam profiles. No single laser beam profiler can handle every power level, pulse duration, repetition rate, wavelength, and beam size.