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Development of liquid crystal infrar...

Finnemeyer, Valerie.

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Development of liquid crystal infrared imaging sensors.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Development of liquid crystal infrared imaging sensors./
作者:	Finnemeyer, Valerie.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
面頁冊數:	262 p.
附註:	Source: Dissertation Abstracts International, Volume: 78-02(E), Section: B.
Contained By:	Dissertation Abstracts International78-02B(E).
標題:	Optics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10144984
ISBN:	9781369005479

Development of liquid crystal infrared imaging sensors.
Finnemeyer, Valerie.

Development of liquid crystal infrared imaging sensors. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 262 p.

Source: Dissertation Abstracts International, Volume: 78-02(E), Section: B.

Thesis (Ph.D.)--Kent State University, 2016.

Outside of the display industry, liquid crystals have been used to create many optical components across a wide range of applications. Their variable anisotropic properties give them the unique capability to replace more complex and expensive and less rugged components in a number of imaging applications across the electro-magnetic spectrum. In this dissertation, two key infrared imaging applications for liquid crystal sensors are described.

ISBN: 9781369005479Subjects--Topical Terms:

517925
Optics.

Development of liquid crystal infrared imaging sensors.
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245 1 0 $a Development of liquid crystal infrared imaging sensors.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2016
300 $a 262 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-02(E), Section: B.
500 $a Adviser: Philip Bos.
502 $a Thesis (Ph.D.)--Kent State University, 2016.
520 $a Outside of the display industry, liquid crystals have been used to create many optical components across a wide range of applications. Their variable anisotropic properties give them the unique capability to replace more complex and expensive and less rugged components in a number of imaging applications across the electro-magnetic spectrum. In this dissertation, two key infrared imaging applications for liquid crystal sensors are described.
520 $a In the long-wave infrared range, liquid crystals can be used for thermal imaging. However, this application requires pre-formed microcavities with only one fill port. This makes it extremely difficult to generate high-quality alignment for the liquid crystals. As such, a method of infusing an azo dye photoalignment layer into these microcavities is developed to align the liquid crystals. The use of a surface-localized polymer layer which is infused into the microcavities mixed with the liquid crystal is demonstrated to stabilize the alignment layer against subsequent exposure to light. Evidence is provided that infused photoalignment layers cannot be considered equivalent to spun photoalignment layers; there are several key factors which affect the quality of the infused layers, which are demonstrated in bulk liquid crystal cells. Several factors that affect the ability of the surface-localized polymer layer to stabilize the photoalignment layer are also considered. Finally, these methods are extended to the development of stable photoaligned microcavities for the thermal imaging application.
520 $a Next, a birefringent Fourier-transform imaging spectrometer is described which operates in the near-infrared range. A modification to an existing birefringent design is described which offers significant field-of-view improvements. The relative trade-offs of incorporating liquid crystal variable elements into this design are considered. The majority of this work is completed using computer simulation of the propagation of light through the various system configurations.
590 $a School code: 0101.
650 4 $a Optics. $3 517925
650 4 $a Nuclear physics and radiation. $3 3173793
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710 2 $a Kent State University. $b College of Arts and Sciences / Department of Chemical Physics. $3 3176125
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