B749

INFRARED DETECTOR Photon drag detector B749 High-speed detector with high sensitivity in the 10 µm band (for CO2 laser detection) B749 is a photon drag detector that utilizes the photon drag effect in which carriers created by input photons are dragged in the direction of photons, generating an electromotive force. B749 ensures high-speed operation even at room temperatures and has high sensitivity in the 10 µm band, making it well suited to detection of CO2 lasers. An easy-to-use detector module integrated with a preamplifier (B7506-01) is also available. Features Applications l Room temperature operation with high-speed response l Easy-to-use detector module with amplifier (B7506-01) is available l CO2 laser detection ACCESSORIES (Optional) l Magnet stand l Infrared detector module with preamp I General ratings Parameter Active area Output polarity Specification f5 Positive A1447 B7506-01 Unit mm - I Absolute maximum ratings Parameter Operating temperature Storage temperature Symbol Topr Tstg Value 0 to +60 0 to +60 Unit °C °C I Electrical and optical characteristics (T=25 °C) Parameter Photo sensitivity Rise time Noise equivalent power Output impedance Maximum input light level Symbol S tr NEP Condition l=10.6 µm 10 to 90 % l=10.6 µm Min. Typ. 1.2 4 × 10-3 50 1 Max. 1 Unit mV/kW ns W/Hz1/2 W J/cm2 Photon drag detector I Dimensional outline (unit: mm) B749 30 79.5 B749 16.0 ± 0.5 20 ACTIVE AREA 1/4-20UNC BNC CONNECTOR KIRDA0016EC Magnet stand A1447 (sold separately) 1/4-20UNC 20 5.5 160 MIN. 230 MAX. 49.5 100 KIRDA0017EA I Precautions for use The Ge element mounted in the detector package is susceptible to shocks and drop impacts. Handle the detector with extreme care. Do not allow light higher than 10 MW/cm2 to strike the detector element, because the element surface might be damaged. Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2002 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 Cat. No. KIRD1038E02 Sep. 2002 DN