Photoluminescence Lasers

What are Photoluminescence Lasers?

Photoluminescence lasers are typically laser diodes or DPSS lasers, emitting short wavelengths in the UV or Blue spectral regions, utilized for measuring a semiconductor’s bandgap, for example.

So, what is Photoluminescence?

Photoluminescence (also photoluminescence spectroscopy or fluorescence spectroscopy in chemistry) is a generalized term for exciting light emission from a material utilizing a short-wavelength light source as the excitation source. While this term applies to many different optical applications, the more common usage is for measuring a semiconductor’s bandgap. This process, commonly used in testing laser diodes and light-emitting diodes (LEDs), utilizes short-wavelength (typically blue or ultraviolet) photoluminescence lasers to excite the electrons from the valence band to the conduction band. Then when they relax back down the valence band, they emit light whose energy is equal to that of the band gap. By measuring this emission, LEDs and laser diodes can then be sorted and binned according to their emission properties. On this page, you will find a list of all of the photoluminescence lasers we offer, including UV and visible diode and DPSS lasers.

The classification of different photoluminescence processes is determined by various parameters like the photon’s excitation energy with respect to emission. When photons with a specific wavelength are absorbed, causing the rapid re-emission of identical photons, we call this process resonant excitation or resonance fluorescence.

For gases or solutions, this process does involve electrons. However, there are no significant internal energy transitions between absorption and emission involving molecular features of the chemical substance.

Secondary emission can be more complicated for electronic band structures in crystalline inorganic semiconductors because events may contain both coherent and incoherent contributions. Coherent contributions include resonant Rayleigh scattering, where a fixed phase relationship with the driving light field is maintained (i.e., energetically elastic processes where no losses are involved). In contrast, incoherent contributions involve inelastic modes where some energy channels into an auxiliary loss mode.

Lasers and Photoluminescence:

As mentioned earlier, photoluminescence spectroscopy is commonly used for the characterization of the electronic and optical properties of various molecules and semiconductors. This contactless technique is fast and nondestructive, making it suitable for in-process characterization of the optoelectronic properties of various materials without tedious sample preparation. In the field of chemistry, photoluminescence is often referred to as fluorescence spectroscopy, even though it utilizes the same instruments. The relaxation processes involved in this technique can be studied, utilizing time-resolved fluorescence spectroscopy (also called fluorescence lifetime), allowing one to determine the decay lifetime of the photoluminescence. These methods can be combined with microscopy to map the intensity (confocal microscopy or confocal fluorescence microscopy) or the lifetime (fluorescence-lifetime imaging microscopy) when studying a semiconducting wafer or a biological sample that has been marked with fluorescent tags.

Lasers and Photoluminescence

For over 25 years, RPMC Lasers has provided assistance to researchers and OEM integrators when choosing the right laser source for their application. We offer a wide range of laser types and configuration options with photoluminescence as a target application, including Single Emitter Laser Diodes, Laser Diode Modules, Multi-Wavelength Laser Diodes, Pulsed DPSS Lasers, and Microchip lasers, all in the UV, Violet, and Blue wavelength regimes, perfect for photoluminescence applications.

How Can We Help?

With over 25 years experience helping to match the right laser source to the application, and offering a wide range of standard and customizable laser source products, the team at RPMC is prepared and eager to help you find the right solution!

If you have any questions, or if you would like some assistance please Contact Us here. Furthermore, you can email us at [email protected] to talk to a knowledgeable Product Manager.

Alternatively, use the filters on this page to assist in narrowing down the selection of photoluminescence lasers for sale. Finally, head to our Knowledge Center with our Lasers 101 page and Blogs, Whitepapers, and FAQ pages for further, in-depth reading.

Finally, check out our Limited Supply – In Stock – Buy Now page: This page contains an ever-changing assortment of various types of new lasers at marked-down/discount prices.

Additional Resources

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Matchbox Series

The Matchbox series offers excellent performance and reliability in the “World’s Smallest” ultra-compact, all-in-one, integrated laser head. They can operate on a 5V power supply while maintaining low noise operation. The monolithic design of the Matchbox Series laser includes thermally stabilized optics in a hermetically sealed housing, ensuring reliable and maintenance-free operation. This series is available in wavelengths from 405 nm thru 1064nm, with options for collimated beam or fiber-coupled output, and single-mode and multimode versions.

HL Series

TG420

The HL Series offers versatile and high-quality laser diode products in a variety of wavelengths and high-power options, ideal for direct imaging, industrial, and bio/medical applications. These reliable, efficient, and compact diodes come in TO-Can packages, making them perfect for OEM integration. Additionally, they operate with TE mode oscillation and are RoHS compliant, ensuring safe use. Choose the HL Series for quality, reliability, and performance in laser diodes.

LaserBoxx HPE Series

LBX-488

The LaserBoxx HPE Series is a highly versatile and customizable laser module series that offers superior performance and reliability in a compact, driver integrated laser head. With a wide range of wavelengths from the UV to the NIR, this series offers high-power laser diode modules that are perfect for a variety of applications. The LaserBoxx HPE series also includes removable multimode fiber coupling options and dedicated control software with USB and RS232 interfaces, as well as an external controller with power display, ensuring easy integration and precise power and modulation control.

LaserBoxx Low Noise Series

The LaserBoxx Low Noise series of CW diode laser modules, with a variety of wavelengths from 375 to 785nm and output powers up to 350mW, offers highly customizable laser solutions for OEM and plug & play modules. With advanced features such as excellent beam quality, stability, and modulation capabilities, our lasers provide ultra-low noise and a wide range of options for SM, MM, and PM fiber coupling. Our dedicated control software, USB and RS232 interfaces, and external controller with power display make integration, operation, and remote diagnostics a breeze. Additionally, our rugged and compact design and wide variety of standard wavelengths ensure that our lasers can meet your specific needs.

LDX Series

The LDX Series of made-in-the-US, high-power, multimode laser diodes provide wavelengths from 400nm – 1900nm, a wide range of output powers and package types, as well as completely customized solutions. We have been offering these high-quality laser diodes for over 25 years. The performance, reliability, and lifetimes are time tested, and if for some reason there is an issue, we will make it right.

Onda Series

The Onda series is a DPSS nanosecond OEM laser platform designed for high-end applications requiring excellent beam quality and high peak power in materials such as metals, glass, plastics, and various delicate and hard materials. This compact and easy to use laser series is available in wavelengths of 266, 355, 532, and 1064nm, with an extended operating temperature range and superior performance to cost ratio. The Onda series’ internal optical layout and accurate temperature management enable high output energies without compromising the lifetime of the THG and FHG stages.

RPK Series

The RPK Series of multiple, single-emitter fiber-coupled diode lasers are available in wavelengths from 405nm thru 1550nm with up to 300W output power. Our specialized fiber-coupling techniques ensure high efficiency, stability, and superior beam quality, while rigorous inspections and burn-in procedures guarantee each product’s reliability, stability, and long lifetime. Highly customizable packages allow us to meet our customers’ specific needs, providing high-quality products at reasonable prices.

Microchip Series

The Microchip series is a line of ultra-compact, passively q-switched, single longitudinal mode (SLM), narrow linewidth, DPSS lasers that offer exceptional performance in a compact form factor. The lasers feature pulse durations ranging from 400 ps to 2 ns, energy levels up to 80 µJ, and repetition rates up to 100 kHz. Available in wavelengths from the UV to the NIR, this series is designed for OEM integrators and researchers working with LIDAR, 3D scanning, LIBS, night vision, and more. The lasers offer both nanosecond and picosecond options and are interchangeable with the same form factor and electrical and software interfaces across wavelengths, making them a flexible and versatile solution.

TG Series

The TG Series of laser diodes emit in the blue spectral range with non-standard wavelengths from 420nm up to 460 nm, perfect for Life Science applications, with a typical output power of 50mW and an absolute maximum output power of 100mW. Assembled in a 5.6 mm (TO-56) packages the TG series is a suitable for a wide range of OEM applications that require blue/violet light.

Wedge Series

The Wedge series is a line of DPSS lasers designed specifically for OEM applications such as micro machining of hard and soft materials, specialty marking, glass and crystal engraving, LIDAR, LIBS, spectroscopy, and medical diagnostics. These diode–pumped lasers, based on proprietary fast Q-switching technology, are compact, sealed, and monolithic which makes them insensitive to vibrations and harsh environments. With high peak powers and relatively low energy and heat generation, they allow efficient ablation and non-linear interaction with most materials. The compact and lightweight package is a great benefit in LIDAR and other aerospace applications, while short pulses provide extremely precise time-of-flight measurements.