滨松为需要不同波长、光强和功率的各种用途提供形形色色的 MPPC,也称为硅光电倍增器 (SiPM)。典型用途包括但不限于生物光子学、危害和威胁检测(放射性检测)、LiDAR(激光雷达)和 3D 测距、粒子物理学、核医学、PET(正电子发射断层扫描)、卫生监测、量子计算以及分类和回收。
MPPC (SiPM) 和单像素光子计数器 (SPPC/SPAD) 阵列能够测量微弱光。例如,它们可用于基于飞行时间 (TOF) 方法的远程测距。这种测距在汽车应用中很有帮助,例如用于驾驶员监控的车载 LiDAR(激光雷达)、ADAS(高级驾驶员辅助系统)和用于自动驾驶汽车的激光雷达。飞行时间测距还在其他领域发挥作用,例如无人机、手持式测距仪、接近传感器、3D 地图、增强现实、工业自动化和消费机器人。
滨松提供紧凑型 MPPC,即硅光电倍增器 (SiPM),具有低压运行、优异的均匀性和对磁场不敏感的特点。
它们用于医学成像系统,以精确定位癌症的位置。
流式细胞术系统中的侧向散射光和荧光信号是暗淡的,因此使用具有固有增益的探测器,例如 PMT、APD 或 MPPC (SiPM)。MPPC (SiPM) 具有与光电倍增管相当的增益和高带宽,以及由于我们的串扰抑制结构而造成的低过噪声系数。MPPC 具有机械耐久性、磁场抗扰度和低压运行等额外优势,遂成为流式细胞术系统的理想解决方案。
MPPC (SiPM) 的光谱灵敏度特性非常适合常用荧光染料和试剂的发光波长。高灵敏度允许 MPPC 测量荧光显微镜、卫生监测和实时聚合酶链式反应 (PCR) 等用途所需的分钟信号。
MPPC (SiPM) 模块通常用于光学粒子计数器,以进行粒子计数和测量粒子的大小。粒子计数有助于描述洁净室的特征、分析污染区域、对液体中的粒子计数和其他情况。为了检测粒子的低强度散射,强烈建议使用具有增益的光电检测器,例如硅光电倍增器。当激光通过含有气体或液体的腔室时,高增益光电检测器会测量散射光,并且这些事件的强度和频率会表明这些粒子的大小和数量。
在检眼镜检查或眼底镜检查中,出于安全原因,照射到眼球的光强度必须较低。MPPC (SiPM) 和 APD 模块可用于检测和对比从眼睛反射的微弱光,并具有出色的分辨率。
卫生监测装置测量由三磷酸腺苷 (ATP) 与试剂的化学发光反应所发射的光量。样品发射的光量与 ATP 的存在量成比例。MPPC (SiPM) 的高增益和感光灵敏度可实现设计具有高灵敏度的卫生监测系统,用于复杂用途(例如食品安全),以验证食品生产设施的清洁度,以及工业卫生,从而检测是否存在危险微生物。
光电探测器在某些量子计算平台中,用于研究实现量子计算所需的量子现象,例如纠缠和相干。光电探测器(例如单像素光子计数器 (SPPC))具有极高感光灵敏度和低暗计数,也称为 SPAD,可用于单光子计数。此类探测器通常用于量子通信和量子密钥分发。
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