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LaserSense™ Gas Detector

LaserSense-ML™ Analyzer

LaserWarn™ System

LaserScan™ Spectrometer

LaserTune™ QCL Source


Mini-QCL™ QCL module



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For over 50 years, Block Engineering has been a leader in mid-infrared detection instruments. Our industry-leading Quantum Cascade Laser spectrometers and mid-IR laser sources offer the widest tunable range and fastest chemical analysis on the market today. Block's compact QCL module also offers OEM customers new choices for integration into their own gas sensing and surface analysis products.


Block is pleased to introduce the new LaserSense-ML hydrocarbon gas analyzer for mud-logging and the LaserSense-SC for the semiconductor manufacturing industry. The LaserSense family can be used in C1-C5 gas detection, process monitoring, and endpoint detection applications.

The LaserSense features a configurable dynamic range and LOD options with customizable gas cell lengths based on requirements.

Block also offers a product for OEM customers: the ultra-compact Mini-QCL Quantum Cascade Laser OEM module, featuring 250 cm-1 per module. Multiple modules can be seamlessly integrated together by either the OEM or by Block.


July 6, 2016 — Block MEMS Wins $9.8M Government Contract for Standoff Detection of Chemical Threats.

Block has been awarded a contract from the Intelligence Advanced Research Projects Activity (IARPA) to develop a system that can detect trace quantities of chemicals at standoff distances. The award is part of IARPA's Standoff Illuminator for Measuring Absorbance and Reflectance Infrared Light Signatures (SILMARILS) program.

Block's open path LaserWarn system can detect chemicals in parts-per-billion sensitivities over thousands of square feet. The system can be used to protect personnel against chemical threats and can also be used for industrial leak detection.