Mr. Don Dooley Profile

Don Dooley

General Manager at Gentec-EO USA Inc

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Proceedings Article | 5 March 2021 Open Access

Gentec Electro-Optics Inc.: How to measure laser power away from your optical setup with a wireless detector

Don Dooley

Proceedings Volume 11716, 117160S (2021) https://doi.org/10.1117/12.2595969

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Overly-crowded optical set-ups and safety enclosures often make it difficult to insert a regular laser power detector. To provide a measurement solution that offers simpler handling than the usual detector-cable-meter combination, Gentec-EO developed a series of compact laser power meters that are operated remotely and wirelessly. In this product demonstration, we will show how to display and acquire laser power measurement on a smartphone, at up to 30 m away from the wireless detector. The 4 simple steps to obtain a wireless measurement will be shown: 1. Start the BLU app 2. Connect the device 3. Zero the sensor 4. Turn on your laser In the video, we also provide expert tips on how to handle the detector and best practices that will help you make the most accurate laser power measurements, remotely. INCREDIBLE PERFORMANCE Each detector of the all-in-one BLU series offers the same outstanding performance as any Gentec-EO power meter, from a few microwatts to multiple kilowatts. FLEXIBILITY This module is offered with most Gentec-EO laser power detectors, for both the general-use thermopile sensors (UP series) and all our high-power detectors (HP series). HOW TO ORDER The best way to select a BLU power meter is to start by identifying which power detector is best suited for your application. Contact your local sales representative at https://www.gentec-eo.com/contact-us or get a recommendation instantly by filling out the 3 "Product Finder" questions on our website: https://www.gentec-eo.com/products?type=smart Visit our webpage for more information about the BLU series: https://www.gentec-eo.com/products/blu

Proceedings Article | 23 February 2012 Paper

Thin Film Lithium Tantalate (TFLT) pyroelectric detectors

Vincent Stenger, Michael Shnider, Sri Sriram, Donald Dooley, Mark Stout

Proceedings Volume 8261, 82610Q (2012) https://doi.org/10.1117/12.908523

KEYWORDS: Sensors, Pyroelectric detectors, Terahertz radiation, Lithium, Thin films, Crystals, Ions, Semiconducting wafers, Ceramics, Temperature metrology

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Pyroelectric thermal detectors are excellent candidates for detection of broadband radiation. Such detectors utilize permanently poled ferroelectric single crystal lithium tantalate to generate a charge as the crystal heats up by absorbing radiation. The charge, which results in a current output when connected to an external electrical circuit, is directly proportional to the rate of change of temperature of the crystal. The fundamental approach toward enhancing pyroelectric detector response is to form the pyroelectric material into a thin film. An elegant approach for producing bulk quality thin films of pyroelectric materials is by crystal ion slicing. In this paper, we report on the formation of thin film lithium tantalate (TFLT™) pyroelectric detector devices using the ion slicing process. The devices incorporate films less than 9 microns thin and feature apertures as large as 5 mm in diameter. To make functional detectors, ion sliced films were transferred to ceramic carriers in TO-type can test packages. Test results have shown improvement in room temperature detectivity about 20 times higher than the state-of-the-art lithium tantalate pyroelectric detectors.

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