Photon drag detector B749 High-speed detector with high sensitivity in the 10 μm band (for CO2 laser detection) The 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. The 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. Features Applications Room temperature operation with high-speed response CO2 laser detection Options (sold separately) Magnet stand A1447 Structure Parameter Photosensitive area Output polarity Specification φ5 Positive Unit mm - Absolute maximum ratings Parameter Operating temperature Storage temperature Incident light level Symbol Topr Tstg - Condition Value 0 to +60 Unit °C °C 1 10 J/cm2 MW 0 to +60 DC light Pulsed light Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. Electrical and optical characteristics (Ta=25 °C) Parameter Photosensitivity Rise time Noise equivalent power Output impedance Symbol Condition S λ=10.6 μm tr 10 to 90% NEP λ=10.6 μm - Min. - Typ. 1.2 4 × 10-3 50 Max. 1 - Unit mV/kW ns W/Hz1/2 Ω Precautions 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. www.hamamatsu.com 1 Photon drag detector B749 Dimensional outline (unit: mm, tolerance unless otherwise noted: ±1) B749 79.5 ± 2 16.0 ± 0.5 20 30 ± 1 BNC connector 1/4-20UNC Photosensitive area KIRDA0016ED Magnet stand A1447 (sold separately) 20 100 49.5 160 min. 230 max. 5.5 1/4-20UNC KIRDA0017EA 2 Photon drag detector B749 Information described in this material is current as of November, 2012. Product specifications are subject to change without prior notice due to improvements or other reasons. Before assembly into final products, please contact us for the delivery specification sheet to check the latest information. Type numbers of products listed in the delivery specification sheets or supplied as samples may have a suffix "(X)" which means preliminary specifications or a suffix "(Z)" which means developmental specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use. Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184 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) 8152-375-0, Fax: (49) 8152-265-8 France: Hamamatsu Photonics France S.A.R.L.: 19, 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: Thorshamnsgatan 35 16440 Kista, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1 int. 6, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 China: Hamamatsu Photonics (China) Co., Ltd.: 1201 Tower B, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866 Cat. No. KIRD1038E04 Nov. 2012 DN 3