Design of a Surface Plasmon Resonance CO Sensor.

Carbon monoxide (CO) is a highly toxic gas, which can cause death if it is inhaled in small quantities for a long time or in large quantities for a short time. Since this gas can be lethal, it is essential to detect it from minute to large concentrations. Our study consists of the design of a superficial plasmonic resonance (SPR) CO sensor of tiny dimensions which is capable of giving an immediate response at different concentrations.

A Continuous Liquid-Level Sensor for Fuel Tanks Based on Surface Plasmon Resonance.

A standard problem in large tanks at oil refineries and petrol stations is that water and fuel usually occupy the same tank. This is undesirable and causes problems such as corrosion in the tanks. Normally, the water level in tanks is unknown, with the problems that this entails.

Theoretical analysis for spherical aberration induction with low-order correction in refractive surgery: comment.

In this paper, we reply to post-surgical corneal asphericity conclusions made by Dai [Appl. Opt.51, 3966 (2012)].

Retinal-image quality and contrast-sensitivity function in age-related macular degeneration.

Purpose: In this article, retinal-image quality and contrast sensitivity were measured in 25 patients with age-related macular degeneration (ARMD) and 15 patients with normal retinal health.

Materials And Method: Retinal-image quality was evaluated with an objective device based on the double-pass technique, and for visual performance we measured the contrast-sensitivity function.

Results: The results from double-pass device revealed the Strehl ratio to be significantly (p < 0.

Optical image quality and visual performance for patients with keratitis.

Purpose: To evaluate the optical image quality, using 2 optical devices (an aberrometer and a double-pass device), and visual performance [contrast sensitivity function (CSF)] in patients with keratitis and after resolution of the disease.

Methods: Twenty subjects with keratitis (18 patients with unilateral keratitis and 2 patients with bilateral keratitis) were included in this study. We also took measurements in healthy fellow eyes for comparison.