{"id":4687,"date":"2022-10-24T11:25:35","date_gmt":"2022-10-24T11:25:35","guid":{"rendered":"https:\/\/soliton.selectcode.io\/?post_type=product&p=4687"},"modified":"2026-08-19T12:40:24","modified_gmt":"2026-08-19T10:40:24","slug":"helium-cadmium-laser","status":"publish","type":"product","link":"https:\/\/soliton-gmbh.de\/en\/produkt\/helium-cadmium-laser\/","title":{"rendered":"Helium-Cadmium Laser (HeCd) by Kimmon Koha"},"content":{"rendered":"

Helium-Cadmium laser for demanding scientific and industrial applications<\/h1>\n

The Helium-Cadmium Laser (HeCd) by Kimmon Koha<\/strong> are continuously emitting gas lasers for applications where high spectral purity, good beam quality, and high coherence are required. The systems are equipped with 325 nm in the UV range<\/strong>, 442 nm in the visible blue spectral range<\/strong> as well as Dual-wavelength laser with both wavelengths<\/strong> available.<\/p>\n

Kimmon Koha has been working on the development of gas lasers since 1966 and began 1971: began manufacturing HeCd lasers<\/strong>. According to the manufacturer, as of 2019, more than 46,000 HeCd laser systems<\/strong> sold. As a result, Kimmon has decades of experience with this specific laser technology.<\/p>\n

The current product family includes numerous performance levels and beam configurations. Depending on the application, available are TEM\u2080\u2080 single-mode or TEMmn multi-mode systems<\/strong> are available. At 325 nm, the specified output powers range up to 100 mW; at 442 nm, up to 180 mW. In addition, Kimmon offers dual-wavelength systems that emit both wavelengths simultaneously.<\/p>\n

325 nm UV HeCd laser<\/h3>\n

The UV models emit at 325nm<\/strong> and are particularly well-suited as a source of excitation for spectroscopic and materials science studies.<\/p>\n

An important area of application is the Photoluminescence (PL)<\/strong>. Short-wavelength UV radiation can be used, for example, to study semiconductor materials. Kimmon specifically cites the study of lattice defects in GaN semiconductor crystals as an application for 325-nm lasers.<\/p>\n

Other potential applications include Raman spectroscopy, holography, and coherent exposure techniques.<\/p>\n

442 nm HeCd laser<\/h3>\n

The ones at 442 nm<\/strong> Emissions-reducing models offer higher output power of up to 180 mW<\/strong> and are suitable for applications in the visible blue spectral range.<\/p>\n

Kimmon lists 442-nm HeCd lasers, for example, for Direct Imaging<\/strong>. In the process, photosensitive materials can be exposed directly using the laser without prior production of a conventional photomask.<\/p>\n

Thanks to their combination of short wavelength, continuous emission, and high coherence, HeCd lasers are also ideal for interference and holographic applications.<\/p>\n

Dual-wavelength HeCd laser<\/h3>\n

For applications that require two excitation wavelengths, Kimmon offers Dual-wavelength systems with 325 nm and 442 nm<\/strong> an.<\/p>\n

The current series includes both TEM\u2080\u2080 single-mode and multimode variants. Depending on the model, simultaneous emission provides output powers of up to 30\/110 mW in single mode<\/strong> or rather 40\/150 mW in multi-mode<\/strong> available.<\/p>\n

I think this is particularly worth mentioning for your site because the two drop-down menus at the top, \u201e325 nm\u201c and \u201e441.6 nm,\u201c currently give the impression that you always have to choose one<\/strong> Wavelength is the deciding factor.<\/p>\n

Typical applications<\/h2>\n

I would tidy up the existing area a bit and align it more closely with Kimmon's current information:<\/p>\n