BAC100B Raman Probe

Importance of the topic

The development of versatile Raman probes enables rapid, non-destructive chemical analysis in diverse environments, from discovery labs to field operations. Compact sampling interfaces such as the BAC100B series enhance portability and ease of use, while maintaining sensitivity across a broad Raman shift range. Such tools address growing demands for real-time identification of materials in pharmaceutical, environmental, and industrial quality control.

Objectives and Study Overview

This document describes the design, optical performance, and operational capabilities of the BAC100B series Raman probe. It highlights key features that distinguish it from previous models, including extended low-frequency detection, high throughput options, and compatibility with immersion measurements under varying pressure and temperature conditions.

Methodology and Instrumentation

The BAC100B probe integrates excitation and collection fibers housed within a stainless-steel shaft and sealed with a quartz window. Core methodological elements include:

• Excitation wavelengths: 532 nm, 785 nm or 1064 nm coupled through a 105 µm core FC/PC fiber.
• Collection fibers: standard models use 200 µm core SMA-terminated fibers; high-throughput variants employ 300 µm core FC/PC fibers.
• Optical design optimized for Raman shifts down to 65 cm⁻¹ (100 cm⁻¹ for 1064 nm) with Rayleigh rejection of OD6 (OD8 optional).
• Detachable distance regulator for precise focusing and contamination minimization.
• Optional immersion configurations with Kalrez O-ring seals and fused silica or sapphire windows for unpressurized or high-pressure/temperature measurements.

Mechanical and environmental specifications include a 3″ (76.2 mm) shaft length, 9.42 mm diameter, working distances tuned to excitation wavelength, maximum operating temperature of 280 °C, and non-condensing humidity tolerance of 10–85%.

Main Results and Discussion

Key performance outcomes demonstrate:

• Stable long-term operation under field conditions due to robust packaging and internal support structures.
• High throughput optical paths that improve signal collection, particularly beneficial for low-concentration or weakly scattering samples.
• Extended low-frequency detection enabling characterization of lattice modes and low-energy vibrations.
• Customizable shaft materials and dimensions to suit specialized applications, from simple surface contact to harsh immersion environments.

The selectable excitation wavelengths and interchangeable shaft modules provide flexibility for targeting specific molecular fingerprints while adapting to sample geometry and environmental constraints.

Benefits and Practical Applications

The BAC100B probe series offers:

• Direct sample contact via detachable focusing aids, reducing alignment time.
• Minimal risk of contamination or lens damage with user-replaceable shafts.
• Versatile immersion options for in-line process monitoring in reactors or pipelines.
• Broad compatibility with portable Raman spectrometers for on‐site analysis in pharmaceuticals, forensics, and chemical processing.

Its modularity and rugged design support deployment in research, QA/QC laboratories, and industrial settings requiring both rapid screening and detailed spectral analysis.

Future Trends and Applications

Advancements may include further miniaturization of optical components, deeper integration with fiber-optic networks, and enhanced sensitivity through adaptive illumination schemes. Emerging applications could leverage real-time data analytics and machine learning for automated material identification, while custom probe geometries may expand access to confined spaces or extreme environments. Integration with remote sampling systems and microfluidic platforms is anticipated to broaden the use of Raman spectroscopy in environmental monitoring and biomedical diagnostics.

Conclusion

The BAC100B Raman probe series exemplifies a balance of portability, optical performance, and adaptability. Its design supports a wide Raman shift range, high throughput collection, and configurable immersion capabilities. These attributes position it as a valuable tool for rapid, on-site chemical analysis across multiple industries.

References

No external literature was cited in this summary.