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Thorlabs adds portable coded-aperture Raman spectrometer to Its spectroscopy portfolio

Date Announced: 01 Jun 2023

Coded-Aperture Raman Spectrometer

Newton, NJ, USA – Thorlabs has announced that it has expanded its spectroscopy product offering with the release of two variants of Portable Coded-Aperture Raman Spectrometers (Item #’s RASP1 and RASP2) ideal for detecting low-intensity Raman signals.

With the ability to measure Raman spectra in the fingerprint (500 - 1800 cm^-1; RASP1 and RASP2) and high frequency regions (2600 - 3700 cm^-1; RASP2 only), these devices allow for the analysis of the chemical composition of both solid and liquid samples. RASP1 comes with an integrated 785 nm excitation laser, whereas RASP2 contains a 785 nm laser as well as a 680 nm laser. Safety interlocks prevent exposure to the internal Class 4 laser(s), lowering the system's laser classification to Class 1.

RASP1 Coded-Aperture Raman Spectrometer

Based upon the same patented Coded-Aperture technology integrated into the previously released Modular Raman Spectroscopy Kits [Item # RSB1(/M)], these new spectrometers overcome the conventional single slit spectrometer tradeoff between desired spectral resolution and achievable light throughput. With a Coded-Aperture Raman Spectrometer, sample excitation is possible with an unfocused ?2.0 mm laser beam, thereby enabling a large field of view sampling area (ideal for inhomogeneous samples) and low laser power density at the sample (reducing the chance for laser-induced damage).

These benchtop spectrometers are easy to use with ThorRaman, a new software interface that is straightforward, intuitive, and responsive, revealing all functions in one or two clicks. The spectrometers also feature a built-in Neon spectral lamp and come with a polystyrene reference chip that allows for automated self-calibration. An accessory kit (Item # RASPA1) for optimal sample positioning is available separately. Sample composition analysis is performed automatically against up to four substances from a reference library. An example substance library of common chemicals is included with the software, and custom libraries can easily be built using spectra acquired by the user.

About Thorlabs

Thorlabs, a vertically integrated photonics products manufacturer, was founded in 1989 to serve the laser and electro-optics research market. As that market has spawned a multitude of technical innovations, Thorlabs has extended its core competencies in an effort to play an ever-increasing role to serve the Photonics Industry at the research end, as well as the industrial, life science, medical, and defense segments.

The organization’s highly integrated and diverse manufacturing assets include semiconductor fabrication of Fabry-Perot, DFB, and VCSEL lasers; fiber towers for drawing both silica and fluoride glass optical fibers; MBE/MOCVD epitaxial wafer growth reactors; extensive glass and metal fabrication facilities; advanced thin film deposition capabilities; and optomechanical and optoelectronic shops.


43 Sparta Ave
New Jersey 07860
United States

OEM Sales
P: 1-973-300-3000
F: 1-973-300-3600

E-mail: oemsales@thorlabs.com

Web Site: https://www.thorlabs.com

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