提供德国BATOP公司太赫兹元件(产生、探测芯片)、太赫兹、太赫兹时域光谱系统
关键词:太赫兹、THz、Terahertz、太赫兹波、太赫兹源、太赫兹光源、太赫兹天线、太赫兹芯片、太赫兹波产生、THz波接受、太赫兹波探测、太赫兹时域光谱系统、太赫兹成像系统、THz-TDS,太赫兹异步光采样系统、THz-ASOPS、太赫兹成像系统、OSCAT太赫兹成像系统、太赫兹器件、太赫兹系统、太赫兹实验室必备、太赫兹项目、销售、提供、代理、出售 代理德国 Batop 公司的光电导天线,其既可用作太赫兹发生器,也可用作太赫兹探测器,其频率范围为0.1THz~3THz。其产品可应用在安全检查、医学成像、生产过程控制等领域。同时还代理德国MenloSystems公司可提供基于钛宝石飞秒激光器、光纤飞秒激光器的THz-TDS 系统和太赫兹成像系统。 请联系顶尖科仪 刘先生 Tel 86614815 Mob 13927443410 QQ 121206359,Email: ygliu@psci.cn。更多详细产品资料和解决方案请参见http://g1983111.cn.alibaba.com/,以及顶尖科仪主页http://www.psci.cn/Index.asp。 ■ THz 器件 PCA (Photoconductive Antenna for THz Applications) PCA 可用于 terahertz (THz) 的产生和接收 型号代码 PCA-44-16-16-800-x 长度 = 44μm 逢间距 g = 16μm 宽度 W = 16μm 激光波长 λ = 800nm x = 0 未封装的 2mm x 2mm 放在 300μm x 650μm 的衬底上 x = m 固定在直径为 25.4mm 的铝圆片上,并于 1m 的 SAM 连接光纤同轴 x = h 固定在直径为 25.4mm 的铝圆片上 Hyperhemispherical silicon substrate lens, 并于安装了半球状透镜的 1m 长的 SAM 连接光纤同 轴 ■ PCA THz 器件 型号 响应波长 nm 产生频率 THz 暗电阻 MΩ 暗电流 nA 电压 V 恢复时间fs反射系数 % 最大光密度 MW/cm2 最小光密度W/cm2 PCA-44-06-10-800-x 500-850 1 20-30 300-500 20-50 500 5 50 100 PCA-30-10-10-800-x 500-850 1.5 20-40 200-400 20-50 500 5 50 100 PCA-30-14-14-800-x 500-850 1.5 20-30 300-500 20-50 500 5 50 100 PCA-44-16-16-800-x 500-850 1 20-40 200-400 20-50 500 5 50 100 PCA-44-06-10-1030-x 900-1060 1 5GΩ-15GΩ 1pA-9nA 30-50 200 52 100 200 PCA-30-10-10-1030-x 900-1060 1.5 5GΩ-15GΩ 1pA-10nA 30-50 200 52 100 200 PCA-30-14-14-1030-x 900-1060 1.5 5GΩ-15GΩ 0.5-5 30-50 200 52 100 200 PCA-44-34-100-1030-x900-1060 1 5GΩ-15GΩ 0.5-5 30-50 200 52 100 200 PCA-44-06-10-1040-x 1040 1 5GΩ-15GΩ 0.5-5 30-50 200 2 50 100 PCA-30-10-10-1040-x1040 1.5 5GΩ-15GΩ 1pA- 10nA 30-50 200 2 50 100 PCA-30-14-14-1040-x 1040 1.5 5GΩ-15GΩ 0.5-5 30-50 200 2 50 100 PCA-44-16-16-1040-x 1040 1 5GΩ-15GΩ 0.5-5 30-50 200 2 50 100 PCA-44-34-100-1040-x 1040 1 5GΩ- 15GΩ 0.5-5 30-50 200 2 50 100 THz spectrometer PCA - Photoconductive Antenna THz parts 1、THz spectrometer > THz time-domain transmission spectrometer for 1060 nm laser excitation with free space optical path 1)The time-domain spectrometer consists of the following parts: femtosecond fiber laser with 1060 nm wavelength emitter antenna with THz lens PCA-40-05-10-1060-c-f detector antenna with THz lens PCA-44-06-10-1060-c-f delay line with 1 ns time delay substrate holder with manual xy-movement of 50 mm electronic components (pulse generator + lock-in detection) Laptop with spectrometer software T3DS The main parameters of the THz spectrometer are: spectral range: 0.1 - 2.5 THz spectral resolution: 2 GHz S/N-ratio at 0.4 THz: 1000 minimum scan time: 0.5 s THz beam diameter: 12 mm 2)The time-domain spectrometer consists of the following parts: femtosecond fiber laser emitter antenna with THz lens PCA-40-05-10-1060-a-l detector antenna with THz lens PCA-44-06-10-1060-a-l delay line with 1 ns time delay beam splitter and mirrors substrate holder with manual xy-movement of 50 mm electronic components (pulse generator + lock-in detection) Laptop with spectrometer software T3DS The main parameters of the THz spectrometer are: spectral range: 0.1 - 2.5 THz spectral resolution: 2 GHz S/N-ratio at 0.4 THz: 1000 minimum scan time: 0.5 s THz focus distance from antennas: 50 mm 2、太赫兹产生芯片、THz接收芯片 Contents > Poster PCA1 - butterfly antenna PCA2 - parallel line antenna PCA3 - bow-tie antenna SPCA - logarithmic spiral antenna finger gap PCA for photomixing price for PCA1 and PCA2 iPCA - large area interdigital array antenna price for iPCA Flyer: PCA survey THz antenna mounting options THz spectrometer Adjustment manual for THz spectrometer optical adjustment for single gap antenna > PCA1 - butterfly - highly sensitive detector antenna. Can be used also as emitter Part No. Delivery time l (μm) g (μm) w (μm) Description ManualData Quotation Price PCA-44-06-10-800-x 1 week 44 06 10 PCA: resonance frequency 1 THz, l = 800 nm, gap distance 6 μm, optimal detector antenna PCA-44-16-16-800-x 1 week 44 16 16 PCA: resonance frequency 1 THz, l = 800 nm, gap distance 16 μm PCA-44-34-100-800-x 1 week 44 34 100 PCA: resonance frequency 1 THz, l = 800 nm, gap distance 34 μm PCA-30-10-10-800-x 1 week 30 10 10 PCA: resonance frequency 1.5 THz, l = 800 nm, gap distance 10 μm PCA-30-14-14-800-x 1 week 30 14 14 PCA: resonance frequency 1.5 THz, l = 800 nm, gap distance 14 μm Geometrical antenna parameters: l - length of the antenna, defines the THz resonance frequency. g - gap distance, important for laser excitation. w - gap width. > PCA2 - parallel line - broadband emitter antenna. Can be used also as detector Part No. Delivery time l (μm) g (μm) w (μm) Description Manual Data PCA-40-05-10-800-x 1 week 40 05 10 PCA: resonance frequency 1 THz, l = 800 nm, gap distance 5 μm > PCA3 - bow-tie antenna for emitter and detector at any laser wavelength <~ 1550 nm Part No. Delivery time l (μm) g (μm) w (μm) Description Manual Data Quotation Price PCA-180-05-10-800-x 1 week 180 05 10 bow-tie photoconductive antenna, length l = 180 μm, gap distance 5 μm, laser wavelength l = 800 nm, Quote Price PCA-870-05-10-800-x 1 week 870 05 10 bow-tie photoconductive antenna, length l = 870 μm, gap distance 5 μm, laser wavelength l = 800 nm, Quote Price Geometrical antenna parameters: l - length of the antenna g - gap distance, important for laser excitation. w - gap width. > SPCA - logarithmic spiral - broadband emitter antenna. Part No. Delivery time angle g (μm) d (μm) Description Manual Data Quotation Price SPCA-4Pi-05-3000-800-x 1 week 4 Pi 05 3000 Logarithmic spiral antenna, spiral angle 4 Pi, gap distance 5 μm, spiral diameter 3000, laser wavelength 800 nm Quote Price SPCA-5Pi-05-3000-800-x 1 week 5 Pi 05 3000 Logarithmic spiral antenna, spiral angle 5 Pi, gap distance 5 μm, spiral diameter 3000, laser wavelength 800 nm > Finger gap PCA designed for photomixing. Can be used as emitter and detector Part No. Delivery time l (μm) g (μm) w (μm) Description Manual Data Quotation Price PCA-60-01-10-800-x 1 week 60 01 10 Bow-tie PCA with finger gap for photomixing, antenna length 60 μm, finger distance 1 μm, laser wavelength l = 800 nm, PCA-90-01-10-800-x 1 week 90 01 10 Bow-tie PCA with finger gap for photomixing, antenna length 90 μm, finger distance 1 μm, laser wavelength l = 800 nm, PCA-180-01-10-800-x 1 week 180 01 10 Bow-tie PCA with finger gap for photomixing, antenna length 180 μm, finger distance 1 μm, laser wavelength l = 800 nm, > Part No. description with price information for PCA1, PCA2 and finger gap PCA Part No. example Description Data PDF Price per piece PCA-44-06-10-800-x PhotoConductive Antenna PCA-44-06-10-800-x length l = 44 μm PCA-44-06-10-800-x gap distance g = 6 μm PCA-44-06-10-800-x gap width w = 10 μm PCA-44-06-10-800-x laser excitation wavelength l = 800 nm PCA-44-06-10-800-0 unmounted chip, thickness: 625 μm, with bond contact pads 550 EUR PCA-40-05-10-800-0 unmounted chip, thickness: 625 μm, with bond contact pads 550 EUR PCA-44-06-10-800-h mounted on a hyperhemispherical Si lens, 25.4 mm diameter Al heat sink, 1 m long coaxial cable with BNC or SMA connector PCA-44-06-10-800-c mounted on an collimating aspheric Si substrate lens, 25.4 mm diameter Al heat sink, 1 m long coaxial cable with BNC or SMA connector PCA-44-06-10-800-a mounted on an aspheric focusing Si lens, 25.4 mm diameter Al heat sink, 1 m long coaxial cable with BNC or SMA connector additional options: PCA-44-06-10-800-h-D25mm with hyperhemispherical silicon lens and collimating Teflon lens with THz beam Diameter 25 mm + 150 EUR PCA-44-06-10-800-h-f35mm with hyperhemispherical silicon lens and focusing Teflon lens with 35 mm THz focus length + 300 EUR PCA-44-06-10-800-x-l with aspheric focusing optical lens for free space laser excitation + 400 EUR PCA-44-06-10-800-x-f fiber coupled antenna with FC/PC or FC/APC fiber connector and BNC or SMA electric connector + 1000 EUR PCA-44-06-10-800-x-cf connectorized fiber coupled antenna with FC/PC or FC/APC fiber connector and BNC or SMA electric connector + 1200 EUR PCA-44-06-10-800-x-x-p with preamplifier for detector antenna + 400 EUR xyz translation stage xyz 25 mm translation stage with differential adjuster and kinematic mirror mount with three adjuster screws for alignment of the antenna with respect to the laser beam and the THz optics 1200 EUR > iPCA - interdigital array -large area broadband emitter antenna for high power excitation. Can be used also as detector Part No. Delivery time l (μm) g (μm) w (μm) Description Manual Data Price (EUR) iPCA-21-05-300-800-h 1 week 21 05 300 interdigital photoconductive terahertz antenna, resonance frequency 2 THz, gap distance 5 μm, active area 300 μm x 300 μm, optical excitation wavelength l = 800 nm, with adjusted hyperhemispherical silicon lens, BNC connector Quote Price iPCA-21-05-1000-800-h 1 week 21 05 1000 interdigital photoconductive terahertz antenna, resonance frequency 2 THz, gap distance 5 μm, active area 1 mm x 1 mm, optical excitation wavelength l = 800 nm, with adjusted hyperhemispherical silicon lens, BNC connector Quote Price iPCA l - length, defines the THz resonance frequency g - gap distance w - antenna with > Part No. description with price information for iPCA Part No. example Description Data PDF Price per piece iPCA-21-05-1000-800-h interdigital PhotoConductive Antenna iPCA-21-05-1000-800-h length l = 21 μm iPCA-21-05-1000-800-h gap distance g = 5 μm iPCA-21-05-1000-800-h width w = 1000 μm iPCA-21-05-1000-800-h laser excitation wavelength l ~ 800 nm iPCA-21-05-300-800-h mounted on a hyperhemispherical Si lens with 12 mm diameter 1 700 EUR iPCA-21-05-1000-800-h mounted on a hyperhemispherical Si lens with 12 mm diameter 1 800 EUR additional options: iPCA-21-05-1000-800-c mounted on an collimating aspheric Si substrate lens with 12 mm diameter + 200 EUR iPCA-21-05-1000-800-a mounted on an aspheric focusing Si lens with 12 mm diameter + 200 EUR iPCA-21-05-1000-800-h-f fiber coupled antenna with FC/PC connector + 400 EUR > Information about delivery time is without guarantee. All technical information are intended to be helpful in the application of BATOP products only. We do not accept the responsibility for its use. See also: Terms and conditions of sales. > The currency exchange rate you can find here. > We offer discount for more than 3 pieces per Part No. Pieces Discount 1...3 0 % 4...6 10 % 7...9 20 % 10... 30 % 3、THz透镜(太赫兹硅透镜) 太赫兹准直透镜Aspheric collimating silicon lens CL-12 太赫兹聚焦透镜Aspheric focusing silicon lens FL-12-50 太赫兹波产生的原理 太赫兹( THz) 波是指波长范围为30μm ~3 mm间的电磁辐射, 其波段位于微波和红外光之间。上世纪80年代中期以前,由于缺乏有效的太赫兹产生方法和检测手段,人们对于该波段电磁辐射性质的了解非常有限。近十几年来,由于超快激光技术的迅速发展,太赫兹脉冲的产生具备了稳定、可靠的激发光源,使太赫兹辐射的产生和应用得到了蓬勃发展。 光电导天线产生太赫兹波就是利用具有飞秒脉宽的超短激光脉冲触发光电半导体材料(如GaAs、InP等),在这些半导体材料的表面瞬间激发出自由载流子。如果半导体表面存在电场(如外加偏置电场等),被激发的自由载流子就会被加速,从而辐射出太赫兹波,如图1所示。 图1 光电导天线受激辐射示意图 利用光电导天线产生太赫兹波的基本原理是:在光电半导体材料表面淀积上金属电极制成偶极子天线结构。通过金属电极对这些光电半导体材料施加偏置电压。当超快激光(光子的能量要大于或者等于该种光电半导体材料的能隙)打在两电极之间的光电半导体材料上时,会在其表面瞬间(10-14s量级)产生大量的电子一空穴对。这些光生自由载流子就在外加偏置电场和内建电场的作用下做加速运动,从而在光电半导体材料的表面形成瞬变的光电流。最终,这种快速的、随时间变化的电流就会向外辐射出太赫兹波。 利用光电导天线方法产生太赫兹波发射系统的性能主要取决于三个因素:光电半导体材料、天线的几何结构和泵浦激光的脉冲宽度。光电半导体材料是产生太赫兹波的关键部件,对于性能良好的光电半导体材料,它应该具有高的载流子迁移率、低的载流子寿命和强的耐击穿能力。随着人们对光电导天线的深入研究,现在已开发出许多适宜制作光电导天线的光电半导体材料,如半绝缘砷化嫁(SI-GaAs)、磷化锢(InP)、低温生长的砷化嫁(LT-GaAs)等。 天线结构通常是由最初的Anston型偶极天线逐渐发展出来的偶极子天线(如图2所示)、共振偶极子天线、锥形端射天线、方形螺旋天线、对数周期天线、天线阵列(如图3所示)、大孔径光电导天线和小孔径光电导天线等。由于偶极子天线的结构相对比较简单,所以在大多数的利用光电导天线产生太赫兹波的实验中都是采用的这种天线结构。这种天线结构主要由三部分组成:平面偶极子,产生自由载流子的光电半导体材料和用作欧姆接触的两条共面传输线。光电导偶极子天线可以通过施加偏置电压来提高偶极子天线的激励电流,从而提高太赫兹波的发射功率。 图2 偶极子天线结构示意图 图3 天线阵列结构示意图 光电导天线也可以制作成阵列式结构,这也是提高太赫兹波辐射功率的一种切实可行的方法。光电导天线阵列是将多个太赫兹天线组成阵列,每个阵元可以是偶极子天线,也可以是螺旋天线等等,但是每个阵元的类型、尺寸、辐射特性等必须完全相同,这样天线阵列的辐射场才能由各个阵元的辐射场在空间干涉而成。因此天线阵列的优点是可以获得比较大的发射功率和比较好的方向性,其波束方向也可以通过调节各阵元辐射电场相位的方法调节。 德国 Batop 公司的光电导天线即可用作太赫兹发生器,也可用作太赫兹探测器,其频率范围为0.1THz~3THz。其产品可应用在安全检查、医学成像、生产过程控制等领域。 图4 光电导天线实物照片 图5 光电导天线结构示意图 图6 时域太赫兹光谱仪示意图 图7 测试结果 太赫兹技术的应用领域: |