Focusing lens

The experiment was carried out by a continuously working Nd YAG-laser fabricated by NEC. The laser has a maximum output of 1200 W and is controlled by handling facility with a linear axle. A stage index fiber optical waveguide with a diameter of d=1000 pm was used for the control of the beam. The focusing optics consist of a focusing lens (f=l 16 mm) and a collimation lens (f=70 mm). 

The Champ-Sons model is a most effieient tool allowing quantitative predictions of the field radiated by arbitrary transducers and possibly complex interfaces. It allows one to easily define the complete set of transducer characteristics (shape of the piezoelectric element, planar or focused lens, contact or immersion, single or multi-element), the excitation pulse (possibly an experimentally measured signal), to define the characteristics of the testing configuration (geometry of the piece, transducer position relatively to the piece, characteristics of both the coupling medium and the piece), and finally to define the calculation to run (field-points position, acoustical quantity considered). 

Figure Bl.7.1. Schematic diagram of an electron ionization ion source source block (1) filament (2) trap electrode (3) repeller electrode (4) acceleration region (5) focusing lens (6).

Figure Bl.7.4. Schematic diagram of a reverse geometry (BE) magnetic sector mass spectrometer ion source (1) focusing lens (2) magnetic sector (3) field-free region (4) beam resolving slits (5) electrostatic sector (6) electron multiplier detector (7). Second field-free region components collision cells (8) and beam deflection electrodes (9).

Figure B2.1.6 Femtosecond spectrometer for transient hole-burning spectroscopy with a continuum probe. Symbols used bs, 10% reflecting beamsplitter p, polarizer. The continuum generator consists of a focusing lens, a cell containing flowing water or ethylene glycol or, alternatively, a sapphire crystal and a recollimating lens.

Einstell-lupet /. focusing lens, -marke, /. reference mark, -schraube,/. adjusting screw. Einstellung, /. putting in, standardization, etc. (see einstellen) reference standard (of a solution),... 

Figure 2.21. A, High-intensity point source lamp B, parabolic mirror C, light baffle D, narrow slit E, collimating lens F, Coming filters G, reaction cell or series of cells H, focusing lens I, photomultiplier.

The sample is excited with a lamp, which is followed by a monochromator (the excitation monochromator) or a laser beam. The emitted light is collected by a focusing lens and analyzed by means of a second monochromator (the emission... 

Using an experimentally-optimized focusing lens (/ = 15 mm spot radius, w = 4.3 pm) and a 3 mm KNbOj crystal (cut for NCPM at 22°C and 858 nm AR-coated), up to 11.8 mW of blue average power with a spectral width up to AIsh 1-4 nm at 429 nm was generated with only 44.6 mW of incident fundamental. The maximum observed SHG conversion efficiency was as high as 30 %. The overall efficiency of the electrical-to-blue process was over 1 %, and the blue pulses were measured by autocorrelation to be -500 fs in duration. ... 

The bulk appKTP crystal was 4 mm in length, and was not AR-coated. The grating periods varied from 4.1 pm to 4.3 pm in order to provide a fundamental bandwidth of 7 nm, for SHG at room temperature centered at 851 nm. With an experimentally-optimized focusing lens (f= 15 mm w =... 

Littrow quartz spectrograph spect A spectrograph in which dispersion is accomplished by a Littrow quartz prism with a rear reflecting surface that reverses the light a lens in front of the prism acts as both collimator and focusing lens. li,tro Ikworts spek-tr9,graf ... 

A simple and practical way to achieve the field enhancement is to use backside illumination of a dielectric plate, for instance a cover glass, in a standard DLW geometry with an oil-immersion focusing lens. According to the Fresnel formulas for the right angle incidence (0, = 0°), the coefficients of the in-plane ( ) polarized amphtudes of transmitted and reflected electric fields are, respectively ... 

The mechanical construction of the pulsed-laser atom-probe is greatly simplified without the need of properly terminating the ns HV pulses very close to the tip. There is also no need of a flight-time focusing lens. Very short duration laser pulses can be much more easily produced... 

Magnetic sector field equilibr Lorentz force and centrifugal force mv2 n-e-v-B= 2 - direction focusing (lens effect) - separation after m/z (prism effect) 1 500 5 000 TIMS, organic ms, double-focusing sector field ms, tandem ms... 

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