Optical systems are used to transfer light in beam diagnostics for a variety of imaging applications. The effect of the point spread function (PSF) of these optical systems on the resulting measurements is often approximated or misunderstood. It is imperative that the optical PSF is independently characterised, as this can severely impede the attainable resolution of a diagnostic measurement. A...

PURPOSE To evaluate the error in the estimation of axial length (AL) with the IOLMaster partial coherence interferometry (PCI) biometer and obtain a correction factor that varies as a function of AL and crystalline lens thickness (LT). METHODS Optical simulations were produced for theoretical eyes using Zemax-EE software. Thirty-three combinations including eleven different AL (from 20mm to 3...

Differential atmospheric dispersion is a wavelength-dependent effect introduced by Earth's atmosphere that affects astronomical observations performed using ground-based telescopes. It important, when observing at zenithal angle different from zero, to use an Atmospheric Dispersion Corrector (ADC) compensate this dispersion. The design of ADC based on models that, the best our knowledge, were n...

A compact side-pumped solar laser design using a Ce:Nd:YAG medium is here proposed to improve the TEM00-mode output performance, more specifically beam brightness. The performance of head was numerically studied by both ZEMAX® v13 and LASCADTM v1 software. Maximum multimode power 99.5 W computed for 4.1 mm diameter, 34 length grooved rod, corresponding collection efficiency 33.2 W/m2. To extrac...

We report the design simulation of Raman spectrometer using Zemax optical system software. The is based on Czerny–Turner configuration, which includes an consisting entrance slit, two concave mirrors, reflecting type diffraction grating and image detector. system’s modeling approach suggested by introducing corresponding relationship between detector pixels wavelength, linear CCD receiving surf...

A nematic liquid crystal adaptive optics system (NLC AOS) was assembled for a 2.16-m telescope to correct for atmospheric turbulence. LC AOS was designed and optimized with Zemax optical software. Second, an adaptive correction experiment was performed in the laboratory to test the performance of the NLC AOS. After the correction, the peak to valley (PV) and root mean square (RMS) of the wavefr...

This work explores light delivery optimization for photoacoustic-guided minimally invasive surgeries, such as the endonasal transsphenoidal approach. Monte Carlo simulations were employed to study three-dimensional light propagation in tissue, comprising one or two 4-mm diameter arteries located 3 mm below bone, an absorbing metallic drill contacting the bone surface, and a single light source ...

The ITER Electron Cyclotron Resonance Heating (ECRH) & Current Drive (ECCD) system is planned to be progressively installed and commissioned following the four stage approach of Research Plan. Starting with an injection up 5.8 MW from one Upper Launcher (UL) in vacuum vessel assist plasma breakdown during First Plasma (FP) operation, will then extended achieve a capability 20 injected power...