Single-element beam expanders containing an aspheric surface can be used in cascade to create different magnifications; an added lens adjusts for wavelength-change effects.

The National Space Biomedical Research Institute (NSBRI) has awarded the makers two optics/photonics-based biomedical devices with grants.

A hollow silica-based optical fiber coated on its inside surface simultaneously transmits CO2 laser light and a visible aiming beam for surgery.

Tracking how molecules move, form shapes, and interact within neurons and other cells offers a powerful view of biological processes that impact health.

Mauna Kea Technologies (Paris, France) has received FDA clearance for use of its Cellvizio confocal laser endomicroscopy platform in surgery.

Attendees to the Biomedical Optics Symposium (BiOS), which will again comprise the major portion of SPIE Photonics West, will get to learn how new photonics advances improve surgical...

Historically, the relationship between the solar photovoltaic (PV) industry and laser-based equipment suppliers has been in start-stop mode.

Global financial markets have continued their tumultuous ways, so it's reassuring that photonics in general, and especially lasers, have followed steadier paths for growth and...

As the size of semiconductor wafer features continues to shrink to low-double-digit nanometer values, inspection equipment is needed to ensure zero defects at reasonable process...

Done correctly, a high-quality photographic-emulsion-based hologram can present a stunning 3D image that closely replicates the appearance of an actual object.

Most economic forecasters agree that the global economy is slowing. However, the attractive ROI and energy efficiency of today's laser technologies just may keep laser sales ahead...

Alan Willner is president of The Optical Society, steering committee chairman of the National Photonics Initiative, and Steven and Kathryn Sample Chair in Engineering at the Ming...

Dr. Y.S. Liu, formerly Vice Chancellor of the University System of Taiwan and Macronix Professor at the Institute of Photonics of National Tsing Hua University (NTHU), is Distinguished...

Wavefront sensors are at the heart of most adaptive optics (AO), which are used widely in systems ranging from astronomical telescopes, optical coherence tomography (OCT), and...

Splitting water (H2O) through an oxidation process into hydrogen fuel and oxygen or converting carbon dioxide (CO2) into a fuel such as methanol requires a large amount of energy...

Making the most of LED light sources requires refinements in color measurement and standards, and an understanding of how the color sensitivity of the eye varies in the range ...

Since the demonstration of continuous-wave (CW) quantum-cascade (QC)-based terahertz lasers in the early 2000s, researchers have continued to increase power-output levels to the...

The thin-film nature of white organic light-emitting diode (OLED) lighting elements allows them to be made into large-area, glare-free lamps and luminaires shaped unlike any other...

Accurate, repeatable wavelength and intensity information is possible for a spectrometer using an LED source and nonlinear optimization by taking into account variations in system...

Newly developed tools integrated with commercial illumination software quickly create freeform reflective and refractive surfaces.

Applications requiring extremely well-defined illumination patterns may benefit from LEDs modified to control the shape and size of the light aperture.

A compact, stable nanosecond-pulse DPSS marking laser with all-in-one thermal packaging is intended for widespread use by everyday users.

Optical fibers used for sensing can measure temperature, strain, pressure, sound, electrical current, and even the 3D shape of the fiber itself.

Because of its high refractive index of about 1.77, the sapphire-based aplanatic numerical-aperture-increasing lens (aNAIL) can produce a higher resolution than ordinary optics...

Single-molecule technologies are now allowing measurement of proteins at subfemtomolar concentrations. The advance has enabled the development of assays to detect various cancers...

SPIE Photonics West is expected to draw more than 20,000 attendees to listen to 4800 technical presentations, visit 1250 exhibitors, and take advantage of numerous professional...