Raman spectroscopy plays a huge part in the analysis of materials such as explosives in the field, pharmaceutical ingredients in the lab, and changes in genetic material, proteins, and lipids in clinical settings. Utilizing non-elastic scattering of laser light from a molecule to probe the molecular structure and create a vibrational transition in the sample, a molecular fingerprint is gradually built up. There are multiple wavelength analysis selections that can be used for a wide variety of applications. This application note discusses the benefits of using each wavelength, and presents different applications they are used for.
Optical systems use lenses to focus, collimate, expand, collect, and image light. Ranging from convex to concave, and bestform to aspheric, any lens selection must be made with the utmost consideration for its purpose as well as its required quality. This white paper delivers a review of singlet spherical lens shapes, and guidance on deciding the best lens characteristics for each application.
A new demand that has been placed on glass optical fibers is the need for environmental compatibility. The SCHOTT technology group provides a solution for this demand with their new PURAVIS® glass optical fibers that offer several improved performance parameters compared to other types of glass. The process for manufacturing these products does not use lead, arsenic, or antimony, and already complies with future environmental requirements.
The optical quality of aspheric mirrors is commonly specified by their surface accuracy and reflected wavefront error. The surface error is the deviation of the surface from its perfect form, while the wavefront error is the deviation of the resulting reflected or transmitted wavefront from its perfect shape. It is often assumed that these tolerances are related to each other by a simple scale factor. However, that is not the case when it comes to aspheric mirrors. This application note compares surface accuracy measurements with wavefront error measurements, and provides an application example on using them in off-axis parabolas.
Micro-lens arrays are monolithic components manufactured from synthetic fused silica and a laser writing process, which are created for high accuracy array collimation and coupling. PowerPhotonic designs and develops these micro-lens arrays for applications involving coupling between laser sources, fiber and waveguide arrays, optical multiplexing, and optical switching. This application note discusses micro-lens arrays, as well as the technologies they are used in such as wavelength selective switching, WSS technology, and MEMS and LCoS switches.
ZC&R Coatings for Optics (ZC&R), a division of Abrisa Technologies, now offers high throughput efficiency Wide Angle, Broad Spectrum Sensor and Laser Scanning Window solutions for the visible 425-675nm (VIS), visible to near infra-red 425-1050nm (VIS-NIR), short wave infrared 700-1800nm (SWIR) and popular laser and LED wavelengths from 405 to 1550nm. Designed for image sensors and scanners these optics are used in industrial 3D metrology, machine vision, automotive obstacle avoidance, security and surveillance, document scanners, 3D scanning, gesture recognition and other digital imaging applications.
Talks by two Nobel Laureates will be among more than 5,200 leading-edge technical presentations held alongside the premier global photonics and laser exhibition, seminars, and training courses at SPIE Photonics West 2018 in San Francisco, California.
LASER COMPONENTS developed a new coating process for so-called triple mirrors that makes it possible to apply this complex layer design in one pass. Coatings for three wavelengths used to have to be manufactured in two passes. The new method not only results in higher specifications, but it also has the additional advantage of a shorter duration of production.
Scientists have developed novel lenses that enable X-ray microscopy with record resolution in the nanometre regime. Using new materials, the research team led by DESY scientist Saša Bajt from the Center for Free-Electron Laser Science (CFEL) has perfected the design of specialised X-ray optics and achieved a focus spot size with a diameter of less than ten nanometres.
Corning Incorporated announced recently that it has entered into agreements with 3M to purchase substantially all of 3M’s Communication Markets Division in a cash transaction valued at approximately $900M. The acquisition is expected to close during 2018, subject to customary closing conditions and regulatory approval.
Apple recently announced the latest award from its $1B Advanced Manufacturing Fund. Finisar, a leading manufacturer of optical communications components, will receive $390M as part of Apple’s commitment to support innovation and job creation by American manufacturers.
Invenios LLC, an advanced technology micro-fabrication foundry specializing in glass structuring, micro glass packaging and glass bonding is a world leader in providing consumables and devices for gene sequencing, bio-medical, sensor, electronic and optical applications announced recently that it has successfully completed the acquisition of Varioptic, previously a Business Unit of Parrot Drones SAS for an undisclosed amount.
Optics is an interesting subset of physics. It is the study of light and how it can be used in various industries from measurements to biology as well as photography to navigation. Optics is a fascinating field and we are just beginning to scratch the surface with what we know. One of the most interesting developments in optics is the use of fiber optics in the transmission of data. Light is used to transmit data across long distances and this has proved to be efficient as well as inexpensive.
Light is the fasted trailing particle in the universe and it is radiated from one point to the next in the form of waves. Light in a vacuum can travel at an astonishing 300 million meters per second, a speed that would take it to the moon in just about one second. Optics is primarily concerned with the use of light and how the light can be reflected, refracted, bent or manipulated in just about any way. The unique nature of light gives tremendous benefits in using it in various industries. Optics is no one of the ways where light can be used to store data. It seems that anything electrons have done in the past, light waves are able to do, just able to do it faster. In the beginning copper cables were used to transmit electrical pulses in network data transfer. While at that time it was a breakthrough, it was comparatively slow to the movement of light through fiber optics. Once fiber optics replaced, broad band speeds were achieved. All thanks to optics. The uses of optics can advance further with headway being made in fields of defense as well as medicine. Optics are now being used to return sight to the blind as well as create sight for robots.