cavity length
Application of the Spectrum Peak Positioning Technology Based on BP Neural Network in Demodulation of Cavity Length of EFPI Fiber Optical Sensor
... A three layer BP neural network is constructed for the change trajectory of cavity length in all phase space. Taking the main maximum peak wavelength values as input layer N neurons in input, the output ...
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Micro-joule cavity-dumped wavelength-tunable semiconductor disk laser
... Beam profile (see Figure 2 (a), inset) assess- ment performed using the knife-edge scanning technique revealed an M 2 factor of ~1.7×1.4 at the incident pump power of 20W and of 1.5×1.4 at the incident pump power of 11W ...
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Characterization, Simulation and Optimization of Surface Etched Slotted Tunable Laser Diodes
... The linewidth of widely tunable lasers is another parameter which is of importance. Generally speaking, the desired linewidth should be ≤ 1 MHz. Given that the vernier lasers have relatively long cavity lengths in ...
227
High Speed Observation of Periodic Cavity Behavior in a Convergent Divergent Nozzle for Cavitating Water Jet
... region) length has shorter periodic oscillation as well as longer periodic oscillation indicated in Figure ...the cavity length changes in a short time range, even when the upstream pressure ...
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Experimental Study of a Flash-lamp Pumped Passively Q-Switched Nd:YAG Laser Using Cr4+:YAG Saturable Absorber
... investigated. Flat-flat and plano-concave resonators, with different cavity lengths of 18.5, 24 and 39.5 cm, were studied by the use of different output couplers with a reflectivity of 50, 60, 70, 80, 85 and 90 %. ...
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A Fully Coaxial Tunable Broadband Power Equalizer for an X-band MPM
... coaxial cavity loaded with absorbing material as the resonant ...coaxial cavity length, the thickness of the absorbing disc and inserted depth of the probe on the attenuation amplitude and resonant ...
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InAs/GaAs Quantum Dot Dual Mode Distributed Feedback Laser Towards Large Tuning Range Continuous Wave Terahertz Application
... In this paper, a laterally coupled distributed feedback (LC-DFB) laser based on modulation p-doped multiple InAs/ GaAs quantum dot (QD) structures has been fabricated. The device exhibits a high side-mode suppression ...
7
A pseudospark cathode Cherenkov maser : theory and experiment
... cathode cavity length, cathode hole size, applied voltage, external capacitance and the inductance in the discharge circuit ...cathode cavity length to the cathode hole diameter was greater ...
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THz QCL self-mixing interferometry for biomedical applications
... optical length of the external cavity (through variation of its refractive index or the physical length), complex reflectivity of the target, or the laser ...
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Nonlinear frequency conversion of a continuous wave, laser diode pumped Nd:YLF laser
... wave cavity, spatial hole-burning in the homogeneous active medium allows several longitudinal modes to oscillate, and higher pump powers encourage this ...the length of the gain medium and cavity ...
196
OLED microdisplays control cell behavior through optogenetics
... the cavity length of this particular display is tuned to this spectral range which allows good coupling of the emission from the blue OLED stack (FWHM of emission, 460-510 nm) to far-field ...the ...
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Chemically reacting hypersonic flows over 3D cavities : flowfield structure characterisation
... the cavity floor, and the flow is reversed along the bottom cavity surface for the L/D = ...the cavity and attach to the cavity base wall, enhancing momentum and energy ...
35
Theoretical Study on the Operation of the EU/KIT TE34,19-Mode Coaxial-Cavity Gyrotron at 170/204/238 GHz
... following Section 3, initial studies regarding multi- frequency operation using the magnetic field profile of an existing magnet are reported. Further, a study about the geometrical issues regarding the new configuration ...
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Fetal syringomyelia
... median cavity (arrow) is continuous ventrally with the dorsal glial raphe, but does not appear to connect to the mildly dilated and dorsally elongated central canal in this ...
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Proustite parametric oscillators
... a rectangular pulse having the some peak intensity and 26 'optical' length of the oscillator cavity i s f ~ 40 mm, crystal refractive index... allowing for the.[r] ...
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MicroRNA Deregulations in Head and Neck Squamous Cell Carcinomas
... microRNA signature for HNSCC, including a study by Lajer et al., [35], to identify microRNAs alterations associated specifically with HNSCCs of the oral cavity, and the HNSCCs of the oro- or hypopharynx. This ...
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Sensitivity of the advanced LIGO detectors at the beginning of gravitational wave astronomy
... arm cavity loss, coupled with an increase in the available power from the Nd:YAG laser, allows up to 800 kW of laser power to circulate in the arm cavities— 20 times higher than in initial LIGO — significantly ...
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The optogalvanic effect in molecular discharges and the stabilization of CO₂ lasers
... active length) COg lase r was constructed to assess optogalvanic s ta b iliz a tio n o f la rg e r systems and to provide a more intense probe beam fo r external c e ll studies o f OGE and flourescence ...
295
Semiconductor Nanowires: Optical Properties and All-Optical Switching
... optical cavity formation and the strong coupling of the optical field with the electronic resonances, polaritonic effects are particularly important in CdS ...
142
Design and analysis of two piezoelectric cymbal transducers with metal ring and add mass
... Abstract: Based on traditional sandwich structure, two piezoelectric transducers were designed to meet the strict underwater application backgrounds such as high pressure, corrosion resistance, and high strength. Both ...
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