Introduction: Endovenous laser treatment (ELT) is a new treatment method for the reflux of the great saphenous vein. A successful ELT is dependent on the selection of optimum parameters required to achieve optimal vein damage while avoiding side effects including skin burns. The mathematical modeling of ELT can be used to understand the process of ELT. This study was conducted to examine the ef...

Outlines: 1. The first order (conceptual optics) design has been done by Kirk McDonald. Critical components have been purchased. The second order (engineering details) design is in progress. 2. Bench tests for the camera image capture speed have been done at BNL. 3. Instrument, component bench test and their integration with hardware and software are in progress. 4. The larger scale bench test,...

The laser damage resistance of optical coatings is a critical point for a large number of applications. However improving this resistance is often hard to obtain because of the large number of parameters in the deposition processes than can modify the laser damage threshold and the lack of detailed and exploitable studies published on this subject. Then, the aim of this work is to test and anal...

The paper discusses the development of an unmanned aerial vehicle (UAV) based optical system for tracking individual Australian plague locusts. Managing and monitoring of locust swarms is important for minimising damage to agriculture, and the optical tracker combines the benefits of aerial photography and tagged insects to help with this process. Optical transponders are attached to the upper ...

Continuum generation from normally dispersive ultrahigh-numerical-aperture fibers deteriorates in relatively short times, limiting its application as a practical optical source for high-resolution optical coherence tomography. We find that reversible light-induced structural modification of fiber optic materials, rather than permanent optical damage, is responsible for this deterioration. By ex...

Measurements have been made on intrinsic optical bulk breakdown in ten alkali halides at 1.06 microm and in one at 0.69 microm. By comparing the results to previously reported experiments conducted at 10.6 microm and at direct current, it has been possible to identify the damage mechanism as electron avalanche breakdown. Self-focusing has been controlled by restricting the probe powers to well ...

PURPOSE To determine the long-term safety of high-density subvisible diode micropulse photocoagulation (810 nm), compare the clinical findings with computational modeling of tissue hyperthermia and to report results for a subset of eyes treated for diabetic macular edema (ME) documented pre- and postoperatively by spectral-domain optical coherence tomography. METHOD All eyes treated for ME fr...