Particle Measurement

Particle Measurement Lasers Overview

Particle measurement is widely deployed as a means for counting and sizing the number of particles in both air and fluids. Three primary particle measurement methodologies are employed currently optical particle counting, dynamic light scattering, and particle image velocimetry. While dynamic light scattering and optical particle counting look at two different aspects of the scattered light, temporal fluctuations and intensity fluctuations respectively, they both require similar laser specifications. These lasers must then have a high-quality continues wave TEM00 laser. Otherwise, the speckle pattern of the multi-mode beam will interfere with the measurement of the scattered light. Particle image velocimetry, on the other hand, is based on synchronizing a pulsed laser and time-gated camera which are trigged at the same time so that each image can be precisely mapped to a point in time. For all of these applications, the actual wavelength of the laser is not highly critical, but it is generally preferred that visible lasers are used to maximize the sensitivity of the detectors. On this page, you will find a list of all of the particle measurement lasers we offer, including both diode and diode-pumped solid-state lasers.

RPMC has years of experience supporting Particle Measurement applications, helping industry professionals select the right tool for the job.

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BRaMMs Laser Series

BRaMMs Series

The BRaMMS series of CW single frequency lasers, featuring the Solo and Duetto configurations, are available at a variety of wavelengths with high average powers, making them well suited for a variety of highly specialized scientific and industrial applications. The BRaMMS Technology® enables superior performance, high output powers, and outstanding beam properties in an overall compact footprint. The BRaMMs SOLO and Duetto series are utilized in a range of applications including holography, metrology, spectroscopy, and quantum technology.

DX1 Series

DX1 Series

The DX1 series is a tunable single-frequency diode laser in a compact turnkey laser system available in wavelengths from 1270nm thru 2300nm. Utilizing Eblana’s proprietary discrete-mode (DM) technology ensures excellent side mode suppression ratio (SMSR), without the mode hops inherent to most distributed feedback (DFB) lasers.

LBX-S Series

LaserBoxx SLM Series

The LaserBoxx-SLM Series is a single longitudinal mode (SLM) CW diode laser module available in wavelengths at 633nm, 785nm, and 830nm delivering ultra-narrow linewidths thanks to its excellent temperature stability and low noise current. The Oxxius proprietary, embedded firmware locks the laser on the same mode at each startup. This compact, self-contained laser module is available in turn-key or OEM versions and utilizes a proprietary alignment-free, monolithic resonator, and comes standard with a graphic user interface with remote diagnostics via USB, RS232, or direct I/O interface.


LGK Series

The LGX Series of Gas Lasers include a wide range of HeNe and Argon lasers with wavelengths at 488nm, 515nm, 543nm, 594nm, and 633nm.



LRL Series

The LRL series is a 1550nm, high-power, continuous-wave (CW) fiber laser, providing up to 1W of output power from a single-mode fiber. This series offers power tunability ranging from 10%-100%, is available with standard or polarization-maintaining fiber with FC/APC fiber or an optional collimating lens, produces a perfect TEM00 beam, and offers high-speed triggering and modulation.

Matchbox Series

Matchbox Series

The Matchbox series of compact laser diode and DPSS laser modules are available in wavelengths from 405nm thru 1064nm. Options include collimated beam or fiber coupled output, and single mode and multimode versions.

Quantas Q2 QLI

Q-2 Series

The Q2 series is a versatile, diode pumped, air-cooled, Q-switched laser capable of achieving up to 80mJ of pulse energy with an operational rep rate up to 100Hz. Available at the fundamental wavelengths of 1064 and 1053nm, the innovative water-free laser crystal end-pumping technology produces Gaussian-like, low divergence laser beams with high peak powers, enabling efficient harmonics conversion through the 5th harmonic.

Quantas Q2HE

Q2HE Series

The Q2HE series, from Quantum Light Instruments Ltd., features an innovative water-free laser crystal cooling technology that enables generation of high quality laser beams with up to 100 mJ pulse energy and/or up to 4 W of average output power. Featuring a pulse duration of less than 7 ns and a low beam divergence, the Q2HE is capable of achieving efficient fundamental wavelength conversion through the 5th harmonics of 213/211 nm.

R Series

R Series

The R series of wavelength stabilized single mode and multimode laser diodes offer narrow wavelength spectrum in wavelengths from 633nm thru 1064nm. Package options range from components as basic as a TO-56 or 14-pin BF packaged diodes, to OEM modules including electronics, to UL/CE and IEC certified turn-key systems.

Our Products

The search filters to the left can allow you to better sort through the Particle Measurement Lasers products offered at RPMC to find the one which is best suited for your application, or you can talk to one of our laser experts today by calling 1-636-272-7227.