香港量子科技有限公司
HONG KONG QUANTUM TECH LIMITED
高光束质量光谱级激光器，极佳的单色性、稳定性和完美的光斑，是光谱设备激发光源的必然选择。波长覆盖从紫外到近红外。High-beam-quality spectroscopic lasers with excellent monochromaticity, stability and spot profile — the natural choice for spectrometer excitation, spanning UV to near-infrared.
光谱仪器的测量精度高度依赖激发光源的质量。QTM 系列激光器以极佳的单色性、输出稳定性和完美光斑著称，解决光谱设备"光源不稳、光斑差、波长受限"的痛点，保证拉曼光谱、时间分辨光谱等测量的重复性与信噪比。Measurement accuracy relies on excitation source quality. The QTM series delivers outstanding monochromaticity, output stability and spot profile, solving the pain points of unstable sources, poor spots and limited wavelengths to ensure reproducible, high-SNR measurements.
波长覆盖 266nm 至 1064nm，连续与脉冲模式可选，输出功率最高可达瓦级，是搭建和升级光谱系统的理想光源。Covering 266nm to 1064nm in CW and pulsed modes with power up to watt level, the QTM series is an ideal source for building or upgrading spectroscopy systems.
| 波长范围Wavelength range | 266 – 1064nm |
|---|---|
| 工作模式Operation | 连续 / 脉冲CW / Pulsed |
| 输出功率Output power | 最高可达瓦级up to watt level |
| 光束质量Beam quality | TEM00，光束直径beam diameter 1–2mm，线偏振，极小发散角linearly polarised, very low divergence |
| 典型波长Typical wavelengths | 266/375/405/445/458/473/488/515/532/561/633/638/660/685/785/808/830/852/905/940/976/1064nm 等etc. |
部分激光器（尤其是气体激光器）输出功率固定不可调；而现有拉曼光谱仪常只能以 10%/25%/50%/100% 等阶梯式档位选择功率，无法设定样品处的精确功率。测试对热效应敏感的样品时，常常要么"打坏样品"，要么"功率太弱测不到信号"。Some lasers (especially gas lasers) have fixed non-adjustable output, while existing Raman systems often offer only stepped power levels (10%/25%/50%/100%), making it impossible to set the exact power at the sample. Heat-sensitive samples are either damaged by the laser or give too weak a signal.
本装置采用连续中性衰减片方式，由电机带动衰减片连续转动，在激光进入样品前将功率连续、精确地衰减至所需值；也可通过串行通讯直接控制部分激光器的输出。This device uses continuous neutral-density filters: a motor rotates the filter continuously to attenuate the laser power to the exact level required before it reaches the sample. It can also directly control some lasers via serial communication.
| 型号Model | 波长范围Wavelength range |
|---|---|
| QTM-VIS-4 | 450 – 700 nm （可见光）(visible) |
| QTM-UV-4 | 350 – 700 nm （紫外-可见）(UV–visible) |
| QTM-VIR-4 | 650 – 1050 nm （红-近红外）(red–NIR) |
| QTM-UNIR-4 | 240 – 1200 nm （宽谱段）(broadband) |
| 控制精度Resolution | 0.1 mW |
| 衰减范围Attenuation range | OD = 0.04 – 4 |
| 损伤阈值Damage threshold | 0.075 J/cm² |
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