Scientific and Industrial Liquid Crystal Polarimetry Applications
Summary Because the human eye is insensitive to polarization, valuable optical information often goes unnoticed. However, polarimetry—the measurement of a light wave’s polarization state—is crucial in fields such as biology, chemistry, astronomy, and remote sensing. This paper explores methods for accurately determining the retardance value and fast axis position of an unknown waveplate and highlights […]
Liquid Crystal in Precision Optical Devices
Summary While liquid crystal technology is widely known for display applications, its role in scientific and engineering fields is rapidly expanding. Liquid crystal devices (LCDs) are now critical for beam steering, wavefront modulation, and polarization switching in precision optical systems. Unlike traditional flat-panel displays, high-performance liquid crystal optics require specialized construction techniques to achieve superior […]
Achromatic Ferroelectric Liquid Crystal Polarization Rotator
Summary Precise polarization rotation with minimal polarization purity loss is essential for optical switching, polarimetry, and microscopy. Traditional liquid crystal (LC) polarization rotators enable non-mechanical tuning, but their performance is limited to specific wavelengths. Ferroelectric liquid crystal (FLC) devices, however, offer faster response times and can switch between two orthogonal polarization states. By placing an […]
General Microscopy Application Note
Summary Advancements in microscopy imaging are addressing key challenges such as spherical aberration correction in 3D imaging, motion artifact reduction, and the development of new imaging modalities. Spatial light modulators (SLMs) play a crucial role in enhancing traditional microscopy by dynamically controlling wavefronts to optimize image quality. By integrating SLMs, researchers can correct optical distortions, […]
Three-dimensional structured illumination microscopy with enhanced axial resolution
Summary We present two distinct, complementary methods for improving axial resolution in three-dimensional structured illumination microscopy (3D SIM) with minimal or no modification to the optical system. First, we show that placing a mirror directly opposite the sample enables 4-beam interference with higher spatial frequency content than 3D SIM illumination, offering near-isotropic imaging with ~120 […]
