Keely Portway finds out how advances in dual-frequency comb spectroscopy could help to significantly speed-up the rate of detection in a wide range of applications
Dual-frequency comb spectroscopy permits broadband precision spectroscopic measurements with short acquisition time. A dramatic improvement of the maximal spectral bandwidth and the minimal measurement time can be expected when the lasers’ pulse repetition rate is increased, owing to a quadratic dependence (Nyquist criterion). This white paper demonstrates a dual-comb system operating at a high repetition rate of 1 GHz based on mature, digitally-controlled, low-noise modelocked lasers
Monitoring greenhouse gases directly from space is essential to improve the accuracy of climate change analysis. This whitepaper details the use of a LIDAR in space using a GHz frequency-comb for in-orbit calibration.
Menhir Photonics offers industrial-grade femtosecond lasers operating at 1,550nm with GHz repetition-rates and ultra-low noise performance. Combined with their unprecedented reliability, these laser enable applications both in the field and in industrial environments. An ultrafast laser that’s as precise and reliable as a Swiss timepiece.
A technician loads a wedged focus lens, a key element in the NIF final optics assembly, into a cleaning/coating frame
Keely Portway finds out how the latest advances in photonics have enhanced the research environment, and how they have translated to the commercial sector
Organoid imaged with Andor’s desktop confocal microscope system, the BC43. Credit: Andor
As microscopes become ever more powerful, a growing band of businesses are racing to make the latest technologies more accessible and more affordable, reports Rebecca Pool
Illustration of a three-dimensional crystal with various types of confining centres. (a) Crystal with four confining centres, each trapping waves (yellow) in all three dimensions simultaneously. (b) Crystal with a linear confining centre where waves can propagate in one dimension, analogous to an optical fibre. (c) Crystal with a planar confining centre where waves can propagate in two dimensions, analogous to a 2D electron gas. (Image: Vos et al.)
Newly discovered fundamental rules have been embedded into software to dramatically optimise the design of photonic integrated circuits
