InPhotonics, Inc products

Efficient focussing and filtering optics are incorporated into the remarkably compact RamanProbe (4` long x 0.5` diameter), resulting in a versatile sampling tool for the laboratory. The focussed design makes it ideal for analysis through glass and plastic, as well as for measurement of neat solids and surfaces. The standard 5 m cable is integrated directly into the probe; longer fibers and cable extensions are available as options.

The RPB Raman fiber optic probe is a breakthrough for routine laboratory Raman spectroscopy. A modified design based upon the patented RamanProbeTM optical layout has resulted in drastic cost-reduction with limited performance tradeoff. At a retail price of $2,750, the RPB is the clear cost/performance winner among laboratory Raman sampling probes. The RPB is available for three excitation wavelengths: 785, 633, and 532 nm and can be coupled to a variety of spectrograph designs. Optical filtering of 106 offers efficient attenuation of the Rayleigh line for background-free spectra. The probe is lightweight and compact, and has a manual safety shutter (with built in calibration standard)† to shield the user from the laser light. As with our standard RamanProbeTM, the RPB can be used with the compact sample holder for routine measurement of liquids and solids. The 105 µm excitation fiber and 200 µm collection fibers can be coupled to most laser/spectrograph combinations

The RamanProbe II is a versatile fiber optic probe for immersion analysis based on the patented optics of the original RamanProbe. The 8" long body and removable sleeve enable the probe to be immersed directly in solutions for true in situ analysis. The focal distance is selectable to optimize the measurement of dark or turbid solutions.

The RS2000 is the only Raman spectrometer to offer both high resolution and full spectral range capabilities in a system with no moving parts or throughput-limiting slits. Unique to the system is an echelle spectrograph that offers light dispersion in two dimensions to fully exploit the CCD detector area. The result is better than 1 cm^-1 spectral resolution from 200 – 3900 cm^-1 (Raman shift)*. No other system can provide this range and resolution without switching grating positions. The lens based optics are matched to a fiber optic input, providing 1:1 imaging at the focal plane and negating the need for entrance slits.

The VERAX is a high-performance yet affordable solution for general laboratory Raman analysis. Offering ample resolution in the fingerprint region (4cm-1), the VERAX is an ideal complement to FT-IR measurements. The spectrometer is based upon a rugged spectrograph dedicated to a single spectral range. A large 200 µm round fiber aperture is converted to a 60 µm rectangular slit via a fiber bundle, ensuring high optical throughput while maintaining the resolution specification. A cooled CCD (-25°C) provides ample sensitivity and stability with low background noise. The stabilized 785 nm laser completes the package to result in highly reproducible laboratory data.

The ability to rapidly identify chemicals on-site is more important now than ever before. The InPhotote is a powerful tool for law enforcement, civil defense, military personnel, or anyone who may encounter suspicious liquid and solid substances. Unlike other technologies, the InPhotote is able to interrogate samples through transparent and semi-transparent containers, keeping personnel and instrumentation away from possible threats. Only the fiber optic probe needs to be close to the sample and analysis is completely nondestructive.

When detecting Raman scattering, the sample`s fluorescence can be a large non-Raman signal source. Since the fluorescence signal is also shifted from the laser frequency, it can be difficult to filter it out. Fortunately, fluorescence can be reduced by using a longer wavelength laser as the excitation source. 785nm laser has been the main excitation source for Raman spectroscopy, because it produces relatively low fluorescence and the photodector array is widely available in this wavelength range. Recently, the InGaAs photodector array has been commercialized which extends the range of wavelength detection to 1-2mm. Coupling the InGaAS photodetector with a 1064nm laser excitation source reduces interference from fluorescence. The following shows the Raman spectrum of motor oil with 785 and 1064 nm laser respectively.

A new option for process development and process monitoring applications, the Reaction RamanProbe is a versatile, cost-effective probe for reactions at moderately elevated temperatures and pressures. Due to the compact design, the optical head can be placed at the tip of the 5/8" diameter probe for maximum throughput. The Reaction RamanProbe can be made several feet in length to achieve very long immersion depths.

Raman spectroscopy can now be applied to reaction monitoring and process control applications with the Process RamanProbe. The Process RamanProbe combines the best features of optical design and mechanical robustness for sensitive and cost-effective process monitoring. This probe is based upon the same quality optics as the standard RamanProbe, but to protect the optics from extreme heat, the probe body is kept at a distance from the reactor with an extension tube. The tube itself can be interfaced directly into reactors and process lines. With the optional purgeable housing, the probe is suitable for most industrial environments.

The InPhotonics dual-wavelength probe allows the user to switch between 532 and 785 nm excitation wavelengths, without having to align multiple probes onto the sample. Both wavelengths focus onto the sample at the same spot. Based on our patented RamanProbe optical layout, the dual-wavelength design offers excellent collection efficiency and strong attenuation of the Rayleigh line for high-quality, background-free spectra. The probe comes standard with FC or SMA receptacles and 4 fiber jumpers. The spot size of the probe may be changed by changing the size of the excitation fiber jumpers, and the probe is designed to work with our compact sample holder for routine laboratory measurements.