1.Quantum Cascade Laser Instruments/量子级联激光器
Block的红外吸收光谱仪基于宽调谐范围（1100cm-1）的量子级联激光器。该系统使用高亮度激光源，具有高功率谱密度和辐射。高亮度的量子级联光源使得它能够对微量的液体和固体分析在远距离具有较高的灵敏度，并且可以快速分析高吸收或扩散材料。
Block的量子级联光谱仪相对于传统的红外光谱仪，灵敏度高、通用性强、坚固耐用、携带方便。同时，可以非常快速的对样品进行分析。它的应用范围从远距离的痕量分析，到气体测量，再到微观目标的分析。如：生物细胞和法院样品。
1).LaserTune™--- Widely Tunable Mid-Infrared Laser Source/宽范围可调谐中红外激光光源
它是一个可调谐中红外光源，完全集成的Lasertune系统是具有宽调谐范围的中红外量子级联激光源。
主要特点：
•业界领先的无缝调谐范围：～5.4-12.8um （Δν >1000cm-1），可配置多达4个内部激光模块
• 快速调谐（sweeps 25 cm-1/msec）
•优良的光束指向稳定性
•单箱完全集成的解决方案
•灵活友好的用户界面（无线可选）
•非常适合于OEM和手持应用
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产品参数：
Gap-Free Tuning Range |
λ ≈ 5.3 – 12.8 µm (Δν > 1000 cm-1) (typical)
(system can be configured with up to 4 tuners) |
Spectral Linewidth |
< 2 cm-1 (typical) |
Spectral Accuracy /
Repeatability |
< 2 cm-1 / < 0.5 cm-1 (typical) |
Maximum Peak Power |
150 mW (typical for 4 tuners, see tuning curve) |
Average Power |
0.5 – 15 mW over 95% of 1000 cm-1
typical at 5% duty-cycle for 4 tuners |
Power Stability |
< 5% pulse-to-pulse (typical)
< 0.05% over 10 msec @ 1 MHz (typical) |
Pulse Width |
30 – 300 nsec
·continuously variable with External Pulse Control
·10-ns-resolution with Int.& Ext.Triggering |
Pulse Repetition Frequency |
Up to 3 MHz |
Maximum Duty Cycle (DC) |
2.5 – 15% (depending on pulse parameters) |
Beam Quality |
Single spatial mode |
Beam Diameter |
2 x 4 mm, collimated output |
Beam Divergence |
< 5 mrad |
Pointing Stability |
< 1 mrad 99% of 1000 cm-1 |
Polarization |
Vertically polarized, 100:1 extinction |
Tuning Modes |
Move Tune – manual control
Step Tune – programmable sequences
Sweep Tune – programmable linear sweeps |
Step Tune Speed |
10 cm-1 step in <1 msec (100 cm-1 step in <2 msec)
Example: Step across1000cm-1 in 1.1 seconds with 100 steps with 10 msec dwell per step |
Sweep Tune Speed |
Linear sweep > 25 cm-1/msec |
Computer Control |
Wireless; Ethernet; HTML/SOAP interface Digital monitoring of wavelength |
Analog Pulse Control |
Internal Trigger – with Sync-Out and adjustable offset
External Trigger – for laser pulse & wavelength tune
Pulse Control – directly controls rising & falling edges |
Dimensions |
Approx. 6.25 × 5 × 4.9 inches Volume = 2.6 liters |
Weight |
2 kg (4.5 lbs) |
Cooling |
Active cooling via fans |
Temperature Range
(Operating / Storage) |
10 to 30 °C / -10 to 70 °C |
Electrical Power |
100 – 240 Volts (50/60 Hz) 2 Amp |
详细产品参数见 lasertune.pdf
2).LaserScan™ ---In-line Process Inspection Spectrometer/在线工艺检查光谱仪
它是宽范围可调谐中红外量子级联激光器光谱仪，可以在6英寸到2英尺间距的物质表面检测扫描。
主要应用：
它能识别散装材料，并且检测亚微米膜基于它们的中红外
吸收特性。主要用于包括探测爆炸材料，传统的和非传统
的化学药剂。和有毒工业化学品。它也可以分析气体和液体。
该设备的另一种版本的设计与普通FTIR附件相连，包括液体和气体细胞，反射附件接口等。
主要特点：
•灵敏度高、通用性强、坚固耐用、携带方便
•毫秒光谱扫描时间，200 kHz的脉冲激光
•目标无爆炸或燃烧：失焦 5–10 mm
•人眼安全操作
•便携和坚固的固体/电信级组件 |
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产品对比：
产品参数：
Continuous Wavelength
Coverage |
LaserScan610: 6.25-10 μm (~1600-1000 cm-1)
LaserScan712: 7-12 μm (~1430-830 cm-1) |
Measurement Time |
A few seconds (minimum) |
Laser Pulse Modulation |
200 kHz (Insensitive to stray light) |
SNR (100% line RMS noise) |
0.1% (1000:1) (measured at 1100+/-50 cm-1) |
Intensity Drift (100% line variation) |
<0.2% over 2hrs |
Wavelength Accuracy |
<0.5 cm-1 |
Wavelength Precision |
< 0.2 cm-1 over 2 hrs |
Average Power |
Typically varies between 0.5 mW and 10mW across the 600 cm-1 tuning range |
Beam Divergence |
<5 mrad |
Beam Diameter |
2 x 4 mm Collimated |
Polarization |
TEM, 100:1 Extinction, Vertically Polarized |
Spectral Resolution |
Software Selectable 2, 4, 8 cm-1 |
Dimensions |
25.4 x 20.3 x 12.7 cm (10 x 8 x 5 inches) |
Weight |
4.3 kg (9.5 lbs) |
Operating Temp. Range |
10 to 30 °C |
Storage Temp. Range |
-10 to 70 °C |
Communication Interface |
USB |
Operating System |
Win XP-SP3 or later |
Electrical Interface |
100-240 Volts (50/60 Hz) 2 Amp |
Mechanical Interface |
Collimated and centered IR output beam
Standard Configuration: 3-inch collection lens
(Other configurations available upon request) |
Standoff Distance |
Standard Configuration: 6 inches
(Other configurations available upon request) |
Measurement Technique |
Diffuse Reflectance |
Spectral Acquisition |
Built in acquisition of complete spectrum across 600 cm-1 range using built in detection system |
Internal Detector |
TE cooled MCT (no LN2 required) |
详细参数见：laserscan.pdf
3).LaserWarn™---Open-Path Chemical Detection System
它是一个开放的化学检测系统，可用于检测化学泄露和威胁。在几百米的距离，灵敏度可以达到十亿分之一。
主要特点：
•24*7实时监测
•有毒工业化学品（TICs）
• 化学战剂（CWAS）
•固定或便携式配置
•室内或室外操作
•低损耗的反响发射器和镜片
•在大多数气体具有很强的独特的
光谱特征的红外光谱中的操作
•比现有系统大大提高了灵敏度和覆盖面积
•无耗材的要求，允许的最小维修
•人眼安全激光
•亚秒读数的快速检测和预警警报
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主要应用：
•大楼
•商场
•机场
•化工厂
•大使馆
•体育场 |
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产品参数：
Maximum Distance |
Standard Range: 500-m round-trip
Extended Range: up to 3 km |
Gases detected |
Most Toxic Industrial Chemicals (TICs), Chemical
Warfare Agents (CWAs) and other chemicals |
Sensitivity |
Varies with gas and distance in path
(e.g., Sarin at 5 ppb over 500 m) |
Response time |
1 second (typical) |
Communication Options |
Ethernet; Wireless; Cellular available
Other options upon request |
Communication Interface |
Readily available interface to security systems |
Dimensions |
Approx. 36 x 22 x 15 cm (14 x 8.5 x 6 inches) |
Weight |
5 kg (11 lbs) |
Electrical Power |
100 – 240 Volts (50/60 Hz), 20 Watts (typical) |
Temperature Range |
-10 to 70 °C (custom enclosures may be required) |
Retro-reflector |
2-inch diameter (included) |
详细参数见：laserwarn.pdf
Laserwarn竞争优势：
相比传统的红外和FTIR系统，LaserWarn具有更大的检测距离和更高的灵敏度。该系统能坚持更广范围的不同气体，而不需要经常性维护。
4).MCT IR Detector™--- Spectral Acquisition Detection
它是一个冷却探测器和前置放大器封装的，可以通过可调谐光源获取光谱数据。该模块也可以作为一个独立的检测器。
主要特点：
•探测器，前置放大器和TE冷却集成到外壳
•即插即用的操作探测器，通过仪器软件控制
•通过2m接口电缆实验的柔性定位
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产品参数：
Detector Element |
TE cooled MCT |
Active area |
1 x 1 mm2 |
Window |
BaF2 |
Wavelength range |
6 – 12 μm |
Total Gain (typical) |
800 V/W |
Cut-Off Frequency Range |
10 Hz – 20 MHz |
Operating Temperature
(typical) |
223 K |
Saturation Threshold Power
(@ 8 μm, 20 MHz speed) |
5 mW (peak) |
详细参数见：mct.pdf
