Ultrashort laser pulses—that are shorter than a millionth of a millionth of a second—have transformed fundamental science, engineering and medicine. Despite this, their ultrashort duration has made ...

Ultrashort laser pulses - that are shorter than a millionth of a millionth of a second -have transformed fundamental science, engineering and ...

Abstract: The paper considers the issue of increasing the efficiency of using higher diffraction orders of an amplitude transmitting diffraction grating for the purposes of spectral analysis of ...

Sound idea: laser light passes between a ultrasound transducer-reflector array that creates a Bragg grating of air. The laser beam interacts with this grating and is deflected without travelling ...

Whether you get it off the block or grab handfuls from a bag, grated cheese is an important food. The tiny teeth of the grater transform it from a solid state into fluffy clouds of parmesan or piles ...

Spectrographs are important tools for studying many biological and chemical processes and substances, from pigments to plant growth and nucleic acids to pharmaceuticals, providing information about ...

A wide mode-hopping free and narrow linewidth tunable laser diode source with a Littman-Metcalf arrangement based on a diffraction grating is presented. Several experiments are carried out to ...

1 School of Physical Science and Technology, Soochow University, Suzhou, China 2 Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou, China Phase-gradient ...

For decades, Bragg gratings have been well-known and popular across the world. Optical filtering, interferometers, spectrometers, lasers, waveguiding, optical delay lines and sensors, and dispersion ...

Abstract: Optical fiber diffraction gratings with periodic structure across the fiber section and fabricated by femtosecond laser are proposed and demonstrated. The diffraction patterns can be clearly ...