Two-dimensional reversible cellular automata constructions may have utility for modeling problems that entail inherently reversible processes, such as optical propagation. This paper speculates on the potential of methods articulated in A New Kind of Science [1] for addressing inverse problems in optical scatterometry, and then describes preliminary work for two-dimensional reversible cellular ...

Recent progress in micro-optics fabrication and optical modeling software opens the opportunity to investigate how microlenslet-array-based compact relay systems can be designed and assessed. We present various optical configurations that include an appropriate baffle computation to eliminate ghost images, followed by an analysis of image quality. The investigation shows the existing trade-off ...

A novel nonparaxial technique based on Pade approximant for modeling ultra short optical pulses has been discussed and verified. The characterization of the technique shows excellent performance in terms of accuracy, efficiency, and stability where the tradiFigure 4 Variation of return loss with frequency for S-MP&SLGPMRMSA-OPMS when Ls1 14 mm. [Color figure can be viewed in the online issue, w...

This paper presents the modeling of hemoglobin at optical frequency (250 nm - 1000 nm) using the unconditionally stable fundamental alternating-direction-implicit finite-difference time-domain (FADI-FDTD) method. An accurate model based on complex conjugate pole-residue pairs is proposed to model the complex permittivity of hemoglobin at optical frequency. Two hemoglobin concentrations at 15 g/...

A general methodology for damper placement in spaceborne interferometers is introduced. The process consists of combined structural/optical/damper modeling, 3. 1, cost selection, and genetic-algorithm or simulated annealing optimization. Combined structural/optical modeling allows the ability to quantitatively predict the effect of mechanical disturbances on optical performance metrics. 3. 1, c...

We implement numerical modeling of high-energy laser-pulse propagation through bulk nonlinear optical materials using focused beams. An executable program with a graphical user interface is made available to researchers for modeling the propagation of beams through materials much thicker than the diffraction length (up to 10(3) times longer). Ultrafast nonlinearities of the bound-electronic Ker...

This paper presents a novel method to fabricate the horizontal frustum structure as a planar optical waveguide by using the proximity printing technique. A horizontal frustum optical waveguide with a both lateral and vertical taper structure was produced. The orthogonal and inclined masks with the diffraction effect were employed in lithography process. This method can precisely control each ho...

We present experimental results and computer modeling on the optical properties of the human scleral tissue. The wavelength dependence of the refractive index of collagen fibers in the human scleral tissue was estimated on the base of Mie theory. Dispersion formula describing this dependence was derived. The results are general and can be used to describe optical properties of many other fibrou...

Micro-optical-electrical-mechanical systems (MOEMS) present a new set of challenges for mixed technology systems on a chip (SoC) designers including the need for mixed-signal multi-domain simulation. We present new modeling techniques for optical and mechanical MEM components and apply these models for improved system-level simulation accuracy of MOEMS switches.

The goal of the research reported here was the development of a circuitbased modeling procedure for both the passive and active components of a quasi-optical power combiner. Contributions include the development of a multi-port equivalent circuit of a multi-element quasi-optical power combiner. Excellent agreement with experimental results was obtained. Mount independent techniques "were also d...