Adaptive Optics

“Twinkle Twinkle Little Star”

200+ words

Turbulence in the atmosphere causes point sources of light, such as stars, to appear to shift rapidly and in random directions. In effect the atmosphere acts as a chaotic lens distorting the image of the stars in our skies. It was once thought that this formed a fundamental limit on ground based astronomy, and led directly to the development of space based telescopes such as the Hubble Space Telescope Mission. An alternative was to correct for these atmospheric distortions, in effect refocusing this image, by rapidly deforming one or more of the telescope mirrors. This idea was suggested as far back as 1953, but the technology of the time was not up to the task.

A modern reflecting telescope uses two or more mirrors to focus light into a single image onto the eyepiece, or more commonly onto an electronic detector (see Cornell University telescope tutorial here). A telescope equipped with adaptive optics focuses on a scientific target such as a faint distant galaxy. The distortion of this image is assumed to be approximately the same as that of a nearby reference star. The distortion of this object is then measured and a feedback system corrects for this distortion. You can see an example of this remarkable technology in the image of the binary star IW Tau.

A modality is a tool or set of methods of investigation. As with the case of Adaptive Optics the tools used to image distant stars are now being turned to fields that the inventors could not have imagined. In the field of anatomy, underlying layers of the retina are obscured by other layers. Nanometer sized fluorescent beads can be positioned within the layers of the retina and can act as artificial guide stars. A similar method can be used to peer into the interior of cells undergoing cell division.

********* To complete this discussion activity:

Do your own internet research, and then write an initial response to the following three discussion prompts. Post your response to the discussion board.

Describe the operation and limitations of adaptive optics system as used in astronomy. In your response be sure to use the terms, guide star, artificial guide star, field of view, feedback, and atmospheric distortion.
Describe the source of distortion and the means of correction in terms of the wave model of light and wave optics. Be sure to use the terms ray, wave, reflection, refraction and focal point in your response.
Discuss an alternative application of this technology to other areas of scientific research and industry. See if you can come up with your own example of a process limited by optical distortion.

Calculate the price
Make an order in advance and get the best price
Pages (550 words)
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know how difficult it is to be a student these days. That's why our prices are one of the most affordable on the market, and there are no hidden fees.

Instead, we offer bonuses, discounts, and free services to make your experience outstanding.
How it works
Receive a 100% original paper that will pass Turnitin from a top essay writing service
step 1
Upload your instructions
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
Pro service tips
How to get the most out of your experience with Boom Grades
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
See why 20k+ students have chosen us as their sole writing assistance provider
Check out the latest reviews and opinions submitted by real customers worldwide and make an informed decision.
english comp
Thank you for all your hard time.
Customer 452509, June 27th, 2021
English 101
perfect! thanks!
Customer 452543, December 1st, 2021
Classic English Literature
Absolutely LOVE the essay I received. I really appreciate it so much.
Customer 452529, October 25th, 2021
Absolutely LOVE having help especially from the person who wrote this last one. THANK YOU
Customer 452529, November 19th, 2021
english comp
Great paper and done before the deadline. Thank you
Customer 452509, June 15th, 2021
Religious studies
I recommend this service they always help. I got an A in this project thanks.
Customer 452507, October 5th, 2021
Great content.
Customer 452549, February 8th, 2022
world civilization
Thank you for the quick response
Customer 452509, June 27th, 2021
English comp
Got a 94% thank you!
Customer 452509, June 27th, 2021
Classic English Literature
Awesome Job... you are the best!
Customer 452531, November 27th, 2021
Exercise Science
Thank you so much for your time.
Customer 452545, December 5th, 2021
Classic English Literature
Great Work as Usual. Thank you . I received an A on the paper!
Customer 452531, November 9th, 2021
Customer reviews in total
Current satisfaction rate
3 pages
Average paper length
Customers referred by a friend
15% OFF your first order
Use a coupon FIRST15 and enjoy expert help with any task at the most affordable price.
Claim my 15% OFF Order in Chat