Germanium Etalon for Quantum Cascade Laser Calibration sales@dmphotonics.com
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- Always in stock!Germanium etalon, diam 12.7 mm x 25.4 mm (diam 0.5" x 1")[E-Ge-12.7-25.4] http://greyhawkoptics.com/product_info.php?cPath=1_28&products_id=83&osCsid=e686d298fbee0014ef0005e84082e5ccGe_ET_1.00_0.50Ge (germanium) etalonType: Cylindrical plane etalonMaterial: Ge optical gradeDiameter: 0.50 (+/-0.05) inchLength: 1.00 (+/-0.01) inchFlatness: 1/4 lambda flat each end, HeNeParallelism: <= 5 arc seconds or better length measure to 0.0005" bevels Surface quality F-f(80/50)Bevels: Protective Bevel
- Always in stock!Germanium etalon, o 12.7 mm x 50.8 mm (o 0.5" x 2")[E-Ge-12.7-50.8] http://greyhawkoptics.com/product_info.php?cPath=1_28&products_id=930&osCsid=c9c9c5f10e8d422785c74cf9db7cbea9Ge_ET_0.5_2Material: Ge optical gradeDiameter: 0.50 (+/-0.05) inchLength: 2.00 (+/-0.01) inchFlatness: 1/4 lambda flat each end, HeNeParallelism: <= 5 arc seconds or betterlength measure to 0.0005"Small bevelsSurface quality 80/50Bevels: Protective Bevel
- Germanium windows for FLIR A-Series thermography camera enclosure - sales@dmphotonics.comMaterial: Germanium optical gradeType: round plane parallel windowDiameter: 43 mm (+/-0.1 mm)Thickness: 4 mm (+/-0.1 mm)Surface quality: 60/40 scr/digParallelism: ? 5 arc minClear aperture: ? 90% of diameterCoating:Face 1: BBAR at 8-12 micronsFace 2: DLC at 8-12 micronsPart number:Ge_CPW_43_4_AR_DLC_8-12FLIR A-Series Infrared CamerasYour Infrared Eye24/7/365, FLIR A-Series fixed-mounted infrared cameras give you peace of mind. They keep watch on your production site with their infrared eye trained to spot anything that is incorrect. They see an abnormality before it becomes a serious, costly and potentially life-threatening failure.FLIR A615 Infrared CameraThe FLIR A35 Thermal CameraThis compact, affordable infrared camera is designed specifically for machine vision. It’s perfect for those applications that only require the benefits of a thermal image but don’t need exact temperature measurement. Learn more about the FLIR A35The FLIR A300/A310 Infrared CameraFLIR A300/A310 infrared cameras target safety and automation applications where networking capabilities and compliance with networking protocols is of essence. The infrared cameras can be installed discretely almost anywhere to monitor your business and are ideal for any industry where fire prevention, critical vessel monitoring and fixed-mounted predictive maintenance are important. Typical users are oil refineries, petrochemical and power plants, and for natural gas processing for monitoring of substations and warehouses.The FLIR A310 f Infrared CameraThe FLIR A310 f is a fix-mounted A310 infrared camera protected by an IP-66 rated housing so all of the features of the FLIR A310 can be applied in harsher, more remote environments – specifically, electric substations. Accurate temperature measurement, analysis, alarm functionality and autonomous communication can be remotely controlled for a single installation or multi-camera network. Learn more about the FLIR A310 fThe FLIR A310 pt Infrared CameraThe FLIR A310 pt is designed to cover larger areas such as coal piles and substations and features a thermal and visible light camera on a single high-performance pan-tilt mount. Ethernet hardware and software protocols enable built-in “smartness” of analysis and alarm functionality. The pan-tilt mechanism enables accurate pointing control and automated scan patterns. Learn more about the FLIR A310 ptThe FLIR A315/A615 Infrared CameraThe FLIR A315/A615 targets R&D and automation applications and is a perfect instrument for industries which rely on permanent monitoring of objects that are fast moving or when the temperature changes over time is quiet fast. FLIR A315/A615 infrared cameras also comply with standards like GigE Vision and GenICam. Due to its compliance to standards, the FLIR A315/A615 infrared camera is a Plug&Play device within third parties' machine vision software like NIs IMAQ VisionTM and the MVTecs HalconTM. Examples of applications include PCB testing, validation and design verification within the automotive, medical and power electronics industries.http://www.flir.com/thermography/americas/us/view/?id=55319
- Featured application:Novel gold-nanoparticle SERS substrates developmentAgilent Gift Funds Exploration of Enhanced Sensor TechnologyNovel gold-nanoparticle SERS substrates. By controlling the size and spacing between nanoparticles that self-arrange into patterns on the surface of the substrate, the color of the light absorbed or reflected by the substrate is tuned. This nanoscale architecture of the substrates is optimized to enhance their interaction with the probing laser light and the chemicals to be detected.Clark School Department of Materials Science and Engineering (MSE) associate professor Oded Rabin has received a $50,000 research gift from Agilent Technologies' University Relations Program. The gift will support his exploration of engineered nanoparticle arrays used to boost the capabilities of surface-enhanced Raman spectroscopy (SERS), a powerful sensing technique that determines the presence, amount and identity of chemicals in a sample by the way light from a laser scatters when shined on it. Rabin will collaborate with MSE professor and chair Robert M. Briber and Agilent scientist Dr. Miao Zhu on the project.The "surface" in "SERS" is an extra component, typically a metal-coated wafer of silicon or glass. This substrate focuses and intensifies the light from the system's laser probe, boosting its ability to detect target materials in trace quantities as small as a few thousand molecules. Rabin's research group has been developing novel, more effective SERS substrates for the past few years. In this case, the substrates consist of billions of gold nanoparticles arranged in a hexagonal pattern over a silicon wafer."Our substrates are exceptional in three ways," Rabin explains. "First, they are fabricated by self-assembly, providing a significant cost benefit. Second, they produce a strong, consistent signal across their entire area—this is of considerable importance as the lack of reproducibility has stalled the transition of SERS from academic settings to real-world diagnostics for decades. Third, the plasmon modes of our substrates' nanostructures can be adjusted to match any given Raman spectrometer that uses a laser excitation in the visible or the near infrared range. This is achieved by changing a single parameter in the fabrication process, with predictable and repeatable results.""The gift from Agilent Technologies will support our efforts to improve this technology and demonstrate its adaptability to market needs," says Briber. "Our work will help design high-throughput assays that best utilize the virtues of the SERS substrates and account for their limitations."Rabin and Briber hope the collaboration will blossom into a partnership in which Agilent, a manufacturer of measurement and analysis systems, will be able to utilize the new substrate technology in the production of spectroscopy devices and substrate kits.http://www.eng.umd.edu/html/news/news_story.php?id=7547
- A New Quantum-Cascade Laser Based Spectrometer for High-Precision Airborne CO2 MeasurementsRodrigo Jimenez et al. Harvard University – Department of Earth and Planetary SciencesWe present a new, compact, fast response mid-IR laser spectrometer for high-precision airborne measurements of CO2. The instrument is based on a thermoelectric-cooled, pulsed-operated DFB quantum-cascade (QC) laser. Unlike conventional cryogenically-cooled Pb-salt diode lasers, QC lasers display high mode purity and wavelength stability, and can be operated at near room temperature. This last attribute allows for a compact design and simplified operation.The CO2 concentration is derived from direct absorption dual-cell spectra obtained by electrical modulation at ~5-10 kHz of the laser wavelength across a selected ?3-band transition at around 4.3 ?m (typically 2311 or 2314 cm-1). The measurements are thus fully specific of the CO2 molecule and free from interference of H2O or other mid-IR light absorbers. Sample gas humidity is nevertheless reduced to less than ~100 ppmv in order to restrain density variation effects.Absorption spectra of the sample and a flowing standard (reference) along a 10-cm (or 5-cm) path are simultaneously detected by LN2-cooled InSbdetectors. The CO2 concentration difference is retrieved from the differential spectrum (sample/reference). The advantages of this “null” modeoperation are discussed in detail.The spectrometer includes a mechanism that allows directing the sample beam either to the cell or to a 25-mm Ge etalon for accurate wavelength tuning rate determination. Additional technical details are discussed, including the impact of laser linewidth on the linearity of the measurements.The spectrometer is enclosed in a temperature controlled, hermetically sealed vessel. The enclosure is flushed with CO2-free dry air previous operation in order to avoid light absorption in the external path. Details on the gas temperature, pressure, and flow rate controls are also presented.The demonstrated short-term precision of the instrument is better than ~75 ppbv Hz-1/2 (1-sigma in 1-s integration time) for CO2 concentrations within ±100 ppmv of the reference concentration. An accuracy of ±0.2 ppmv or better is insured through periodic calibration with high, low and “archival”http://www.dmphotonics.com/Germanium-Optics/Quantum-Cascade%20Laser%20Based%20Spectrometer%20CO2.htm
- Best price guarantee!http://www.dmphotonics.com/BPR.htmGe window, o 25.4 mm x 3 mmMgO-LiNbO3 wafer, Z-cut, 3"x0.5 mm, two sides polishedUV grade Fused Silica window, 12.5x3 mmLiF window o 25.4 mm x 3 mmAxicon, UV FS, diam. 1", cone angle 160°, BBAR 400-700 nmDispersion prism, UV FS, 20x20x20 mmMicrochannel plate imaging detector MCP-GPS 25/2Phosphor Screen P20Rutile (TiO2) coupling prism, 5x5x5 mmAxicon, UV FS, diam. 1", cone angle 140°, BBAR 400-700 nmAxicon, UV FS, diam. 1", cone angle 160°, BBAR 700-1100 nmAxicon, UV FS, diam. 1", cone angle 170°, BBAR 400-700 nmRetro-Reflector, UV FS, o 25.4 mmAxicon, UV FS, diam. 1", cone angle 175°, BBAR 700-1000 nmAxicon, UV FS, diam. 1", cone angle 178°, BBAR 700-1000 nmUV Fused Silica Plano-Convex Lens, o 25mm, f = 300mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 1000mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 3000mmAxicon, UV FS, diam. 1", cone angle 140°, BBAR 700-1000 nmAxicon, UV FS, diam. 1", cone angle 160°, uncoatedAxicon, UV FS, diam. 1", cone angle 175°, BBAR 400-700 nmAxicon, UV FS, diam. 1", cone angle 175°, uncoatedAxicon, UV FS, diam. 1", cone angle 179°, BBAR 800&1064 nmKTP crystal, 6x6x5 mmLiNbO3 wafer, Z-cut, 100 mm x 1.0 mm, 2 sides polishedLiTaO3 wafer, Z-cut, o 12 mm, 60 µmMicrochannel Plate MCP 33-10ERight angle prism, UV FS, 20x20x20 mmUV Fused Silica Plano-Concave Lens, o 25mm, f = -150mmUV Fused Silica Plano-Concave Lens, o 25mm, f = -300mmUV Fused Silica Plano-Concave Lens, o 25mm, f = -500mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 500mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 750mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 1500mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 2000mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 300mmAxicon, BK-7, diam. 1", cone angle 165°, BBAR 1000-1400 nmAxicon, BK-7, diam. 1", cone angle 165°, BBAR 400-700 nmAxicon, UV FS, diam. 1", cone angle 165°, BBAR 800&1064 nmAxicon, UV FS, diam. 1", cone angle 175°, BBAR 1100-1600 nmAxicon, UV FS, diam. 1", cone angle 175°, BBAR 800&1064 nmAxicon, UV FS, diam. 1", cone angle 178°, BBAR 400-700 nmAxicon, UV FS, diam. 1", cone angle 178°, BBAR 800&1064 nmAxicon, UV FS, diam. 1", cone angle 179°, BBAR 400-700 nmAxicon, UV FS, diam. 2", cone angle 160°, BBAR 800-1000 nmBaF2 window, o 25.4 mm x 6.0 mmBBO crystal, 6x6x0.5 mmDove prism, UV FS, 10x10x40 mmGaP crystal, 110-cut, 10x10x0.2 mmGaP crystal, 110-cut, 5x5x0.1 mmGe etalon, o 31.75 mm x 76.2 mm (o 1.25" x 3")KTP crystal, 3x3x5 mmLiNbO3 crystal, X-cut, 10x8.5x0.2 mmLiNbO3 wafer, X-cut, 3"x0.22 mm, 2 sides polishedLiNbO3 wafer, Y/36-cut, 3"x0.5 mm, one side (+) polishedLiNbO3 wafer, Z-cut, 1"x1.0 mm, stoichiometricMicrochannel plate detector MCP-MA 25/2Microchannel plate detector MCP-MA 25/2Microchannel plate imaging detector MCP-IFP 25/2 CF 2 3/4" with HV power supplyPCA: resonance frequency 1 THz, ? = 800 nm, gap distance 6 µmRetro-Reflector, UV FS, o 38.1 mmSAM 1064 nm, absorptance 2%, 1x1 mm or 1.3x1.3 mm, thck. 400 µmSAM 1064 nm, absorptance 2%, mounted: solderedSAM 1550 nm, mounted: solderedSAM 1550 nm, unmountedUV Fused Silica Plano-Concave Lens, o 25mm, f = -50mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 200mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 100mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 150mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 200mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 250mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 2000mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 3000mmZnSe window, o25.4 mm, thickn. 3 mmMost viewed items:Rutile (TiO2) coupling prism, 5x5x5 mmDispersion prism, UV FS, 20x20x20 mmAxicon, UV FS, diam. 1", cone angle 175°, BBAR 700-1000 nmGe window, o 25.4 mm x 3 mmMicrochannel plate detector MCP-MA 25/2BaF2 window, o 4" x 0.5", polished, uncoatedAxicon, UV FS, diam. 1", cone angle 175°, uncoatedReef-RTUV grade Fused Silica window, 12.5x3 mmAxicon, UV FS, diam. 1", cone angle 170°, BBAR 400-700 nmCaF2 window, o 25.4 mm x 3.0 mmAxicon, UV FS, diam. 1", cone angle 179°, BBAR 800&1064 nmMicrochannel plate detector MCP 34/2 GLiNbO3 wafer, Z-cut, 1"x1.0 mm, stoichiometricDispersion Prism Pair, 20x20x20x12 mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 300mmMicrochannel plate imaging detector MCP-GPS 25/2Axicon, UV FS, diam. 1", cone angle 175°, BBAR 1100-1600 nmLiF window o 25.4 mm x 3 mmUV grade Fused Silica window, 25x3 mm, BBAR 400-700 nmUV Fused Silica Plano-Concave Lens, o 25mm, f = -50mmRight angle prism, UV FS, 20x20x20 mmMicrochannel Plate MCP 33-10EDispersion prism, IR grade CaF2, 15x15x15x10 mmUV grade Fused Silica window, 50x5 mmMicrochannel plate imaging detector MCP-IFP 34/2Axicon, UV FS, diam. 1", cone angle 140°, BBAR 400-700 nmAxicon, UV FS, diam. 1", cone angle 178°, BBAR 700-1000 nmAxicon, UV FS, diam. 1", cone angle 175°, BBAR 400-700 nmPCA: resonance frequency 1.5 THz, ? ~ 1040 nm, gap distance 14 µmMicrochannel Plate MCP 25-10EDispersion Prism Pair, 20x20x20 mmSAM 1064 nm, absorptance 2%, 1x1 mm or 1.3x1.3 mm, thck. 400 µmUV grade Fused Silica window, 6x3 mmMicrochannel plate imaging detector MCP-GPS 34/2UV grade Fused Silica window, 25x3 mmLiNbO3 wafer, Z-cut, 100 mm x 1.0 mm, 2 sides polishedAxicon, UV FS, diam. 1", cone angle 160°, uncoatedDispersion Prism, 20x20x20x12 mmUV grade Fused Silica window, 25x3 mm, AR 1100-1600 nmC, C++, C# programming, hourly rateDiffractive Variable Attenuator, 1064 nmUV Fused Silica Plano-Convex Lens, o 12.7mmDiffractive Variable Attenuator, 532 nmDiffractive Variable Attenuator, 800 nmMicrochannel plate imaging detector MCP-IFP 25/2Dove prism, UV FS, 20x20x82 mmZnSe window, o25.4 mm, thickn. 3 mmMicrochannel plate detector MCP-MA 25/2Microchannel plate detector MCP-MA 25/2Dispersion prism, BK-7, 20x20x20 mmBaF2 window, o 12.7 mm x 2.0 mmPCA: resonance frequency 1.5 THz, ? ~ 1040 nm, gap distance 14 µmPCA: resonance frequency 1.5 THz, ? ~ 1040 nm, gap distance 10 µmTi:Sapphire crystal, 5x5 mmCaF2 window, o 40 mm x 7.0 mmLiNbO3 crystal, X-cut, 6x6x30 mmPCA: resonance frequency 1.5 THz, ? ~ 1040 nm, gap distance 10 µmLiTaO3 crystal, Z-cut, 25x25 mm, 100 µmDove prism, BK-7, 10x10x40 mmGe window, o 38.1 mm x 4 mmLiTaO3 wafer, Z-cut, o 12 mm, 60 µmLiF window o 8.7 mm x 3 mmSi window, o 25.4 mm x 3 mmAxicon, UV FS, diam. 1", cone angle 170°, uncoatedSAM 1064 nm, absorptance 2%, mounted: solderedLiNbO3 wafer, Y/36-cut, 3"x0.5 mm, one side (+) polishedPCA: resonance frequency 1 THz, ? ~ 1040 nm, gap distance 16 µmAxicon, BK-7, diam. 1", cone angle 175°, uncoatedLabView programming, hourly ratePCA: resonance frequency 1 THz, ? ~ 1040 nm, gap distance 34 µmUV Fused Silica Plano-Convex Lens, o 50mm, f = 300mmPCA: resonance frequency 1 THz, ? ~ 1040 nm, gap distance 34 µmSAM 1550 nm, mounted: cableRight angle prism, BK-7, 20x20x20 mmPCA: resonance frequency 1 THz, ? ~ 1040 nm, gap distance 16 µmUV Fused Silica Plano-Convex Lens, o 50mm, f = 150mmPCA: resonance frequency 1 THz, ? = 800 nm, gap distance 16 µmBaF2 window, o 15.0 mm x 4.0 mmLiF window o 16.4 mm x 6 mm.NET programming, hourly rateCaF2 window, o 50.8 mm x 3.0 mmAxicon, UV FS, diam. 1", cone angle 160°, BBAR 700-1100 nmVisual Basic programming, hourly ratePCA: resonance frequency 1 THz, ? = 800 nm, gap distance 6 µmRetro-Reflector, UV FS, o 25.4 mm, BBAR 400-700 nmZnSe monocrystal, 5x5x10 mmZnSe window, o12.7 mm, thickn. 1 mmBaF2 window, o 25.4 mm x 6.0 mmAxicon, UV FS, diam. 1", cone angle 160°, BBAR 400-700 nmRight angle prism, UV FS, 10x10x10 mmLiF window o 10 mm x 3.5 mmUV Fused Silica Plano-Convex Lens, o 50mm, f = 2000mmSAM 1550 nm, mounted: solderedPCA: resonance frequency 1 THz, ? ~ 1040 nm, gap distance 6 µmPCA: resonance frequency 1.5 THz, ? = 800 nm, gap distance 10 µmUV Fused Silica Plano-Concave Lens, o 40mm, f = -100mmUV Fused Silica Plano-Convex Lens, o 25mm, f = 1000mmLiNbO3 wafer, X-cut, 3"x0.22 mm, 2 sides polishedUV Fused Silica Plano-Concave Lens, o 25mm, f = -500mm