Video

This is a simple demonstration video for AO(Adaptive Optics) loop.

A tour of the Subaru Telescope provided by SCExAO team members. This video is for educational purposes ONLY. No commercial use.

Each horizontal trace is a spectrum corresponding to one interferometric output of the GLINT instrument. Bright outputs reveal variations in the input optical beam wavefront due to residual atmospheric turbulence. Dark "nulled" outputs N1 and N4 have been optimized for destructive interference of starlight. Null 1 is a long baseline and partially resolves the star so we can see the leakage of t...

Evolution of SCExAO for the first 10 years

instrument exchange at the Subaru Telescope, on the Infrared Nasmyth platform, on 1/14/2019.

Data taken at 1680Hz, slowed down to 30Hz, saturated, log scale. Flashing speckles at 1kHz were added using the deformable mirror, for astrometric and photometric calibration.

Data taken at 1680Hz, slowed down to 30Hz, unsaturated, log scale.

Data was taken at 100 frames/sec. For a playback of total 6 sec with 25 fps. The images have been aligned by centre-of-mass to remove tip-tilt (which is the current limitation).

This sequence shows that although short exposure PSF is diffraction-limited (FWHM~16mas), jitter smears the long exposure PSF to approximately FWHM=22mas in this sequence (~15mas jitter). Some low-order instability also visible. Note that the first Airy ring is not symmetric due to residual non-common path error between nearIR and visible.

VAMPIRES PSF @725nm, September 18, 2016

Strong vibration on Chuckcam

Vibrations with SAPHIRA

Vibrations with Chuckcam

NIR Pyramid WFS Demonstration in the lab

LLOWFS demonstration in the lab