Customer wrote: My application is calibrate the relative wavelength of tunable quantum cascade lasers in the mid-infrared (~10 microns). The laser itself is used for remote sensing of atmospheric gases.

Germanium GlassPrice

I am a graduate student pursuing my doctoral studies at the University of Alberta. The Ge- etalon will be used for non-profit research here at the university. I am presently working on a gas sensing project involving Quantum cascade laser.

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Del Mar Photonics, Inc. 4119 Twilight Ridge San Diego, CA 92130 tel: (858) 876-3133 fax: (858) 630-2376 Skype: delmarphotonics sales@dmphotonics.com

The mid-IR region is ideally suited for absorption spectroscopy since the fundamental vibrational transitions of a number of molecules lie here. Quantum cascade (QC) lasers  fabricated by band structure engineering offer an attractive new option for sensitive IR absorption spectroscopy. Distributed feed-back pulsed QC lasers are of particular interest for they allow the realization of a room temperature, compact IR source with relatively high output power. In particular, their combination with the pulsed-CRDS technique has the potential for high sensitivity trace gas analysis. The goal of our present work is to develop a technique for quantitative online analysis of trace constituents in exhaled breath.  We are using pulsed-CRDS technique in combination with a mid IR QC laser operating near 970 cm-1 to measure ammonia levels in exhaled breath. An unlocked ring-down cavity was designed for these studies which can be operated at atmospheric or reduced pressure. We have already attained a detection limit of 25 ppb for ammonia. We are in a process of improving the system to get down to sub ppb levels with this technique.

Project: Infrared absorption spectroscopy with Quantum cascade laser.The advance of Quantum cascade (QC) lasers fabricated by band structure engineering offers an attractive new option for IR absorption spectroscopy. QC-DFB lasers are of particular interest to gas-sensing applications because they emit single frequency radiation which falls within the 3-15 um window, where the fundamental absorption bands of most of the molecules are located. Research Activities:

Micro-Array Cylindrical Glass Lenses (Fly Eye lens) ... Volume production process, balancing performance and cost advantages. ... To learn more about Focuslight, ...

Short-wave pass (SWP) edge filters are designed to transmit shorter wavelengths while blocking longer wavelengths. These filters are ideal for applications ...

We have 3 options which are on the shelf and each has the 8-12 micron AR coating on them. GE-W-25-2-AR812 (25.4 mm dia x 2 mm thick)  in stock - request a quote GE-W-38-3-AR812  (38.1 mm dia x 3 mm thick)  in stock - request a quote GE-W-50-3-AR812  (50.8 mm dia x 3 mm thick)  in stock - request a quote

Ge optical grade Type: circular plane window Diameter: 25.4 mm (+0.0/-0.2 mm) Thickness: 3 mm (+/-0.1 mm) Surface quality: 40/20 scr/dig Parallelism: 3 arc minutes Clear aperture: 90% of diameter

polarisation. polarisation - Dictionary definition and meaning for word polarisation. Definition (noun) the condition of having or giving polarity. Synonyms ...

Visible window

Ge etalon part number #GEFPE20mm/1.5 - request a quote dia 38.1 (-0.1) mm thickness: 20 (+/-0.1) mm Flatness: 1 fringe ( Lambda/2 at 633 nm) , delta N = 0.2 fringes Surface quality: 60-40 s/d Parallelism: < 2 sec Perpendicularity: 5 min

MATERIAL SELECTION GUIDE. This selector guide is intended to help you review the needs of your particular application and determine a few material candidates ...

Del Mar Photonics supply infrared optics from other materials including ZnSe, Germanium, Barium Fluoride, Calcium Fluoride IR grade and many others. E-mail us for custom quote or check our online store for items available in stock.

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Ge etalon part number #GEFPE3/1.25 - request a quote Length 3.00 +/- 0.01 inch Diameter 1.25+/- 0.05 inch Other specification as in #GEFPE1/05 Ge etalon part number #GEFPE20mm/1.5

Edmund window

Ge etalon part number #GEFPE1/0.5 request a quote - sold in Greyhawk Optics nline store as part number E-Ge-12.7-25.4 Length 1.00 +/- 0.01 inch Diameter 0.50 +/- 0.05 inch 1/4 lambda flat each end, HeNe parallel to 3 ARC SEC or better length measure to 0.0005" small bevels surface quality F-f(80/50) per MIL-F-48616

by R Paschotta · Cited by 13 — The author's answer: No, this does not matter as long as you can properly measure the beam waist ratio and the beam divergence. It is of course a good sanity ...

Macken Instruments Analog Thermopile Laser Power Meter 10-100W YAG. Analog Thermopile Laser Power Meter, 10-100 W YAG. $339.00. Ships in 3 ...

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“Chromatic aberration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chromatic%20aberration. Accessed 16 Nov. 2024.

Germanium glasslens

The etalon will be used for characterization of the laser which would be an important step in choosing the right parameters for the laser for gas-sensing applications.

The most popular standard etalon is 1 inch long For longer wavelength (> 10 micron) it's often necessary to use etalons 2-3 inches long to get required accuracy of calibration.

From the time it was first lit in 1870 until it was decommissioned in 1933, Mission Point Lighthouse had a 5th Order Fresnel Lens. The light from this lens can ...