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Novel Design of Tunable Microlens with Lowered Driving Voltage and Iris with Conformal Antireflective Surface.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Novel Design of Tunable Microlens with Lowered Driving Voltage and Iris with Conformal Antireflective Surface./
作者:	Almoallem, Yousuf Dawood.
面頁冊數:	1 online resource (123 pages)
附註:	Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.
Contained By:	Dissertation Abstracts International79-03B(E).
標題:	Electrical engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9780355529722

Novel Design of Tunable Microlens with Lowered Driving Voltage and Iris with Conformal Antireflective Surface.
Almoallem, Yousuf Dawood.

Novel Design of Tunable Microlens with Lowered Driving Voltage and Iris with Conformal Antireflective Surface. - 1 online resource (123 pages)

Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2017.

Includes bibliographical references

Miniaturizing camera systems as required in many new compact devices places a severe restriction on the device size and power consumption. In modern life nowadays, a daily used compact devices like mobile phones and tablets must have some essential components such as single or multiple tiny cameras, as a component of micro-optical systems. In fact, for most of the current miniaturized cameras, optical power is varied based on the traditional situation where the distances between the lenses are mechanically varied relying on old-fashioned voice coil motors or equivalent mechanical drivers. Spatial and power consumption could be scaled down drastically with much faster response time when the revolutionary alternative liquid tunable microlens is utilized after acquiring a good understanding of microfluidics. The influence of interfacial tension as a key metric in controlling microfluidics systems (e.g. liquid microlens) has drawn considerable attention in biomedical, industrial, military fields over the past decade. Tunable microlenses overcome aforementioned concerns of miniaturizing optical systems and present a viable solution by tuning the focal length of lenses via, for example, variation in the lens curvature.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355529722Subjects--Topical Terms:

596380
Electrical engineering.
Index Terms--Genre/Form:

554714
Electronic books.

Novel Design of Tunable Microlens with Lowered Driving Voltage and Iris with Conformal Antireflective Surface.
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245 1 0 $a Novel Design of Tunable Microlens with Lowered Driving Voltage and Iris with Conformal Antireflective Surface.
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300 $a 1 online resource (123 pages)
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500 $a Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.
500 $a Adviser: Hongrui Jiang.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 2017.
504 $a Includes bibliographical references
520 $a Miniaturizing camera systems as required in many new compact devices places a severe restriction on the device size and power consumption. In modern life nowadays, a daily used compact devices like mobile phones and tablets must have some essential components such as single or multiple tiny cameras, as a component of micro-optical systems. In fact, for most of the current miniaturized cameras, optical power is varied based on the traditional situation where the distances between the lenses are mechanically varied relying on old-fashioned voice coil motors or equivalent mechanical drivers. Spatial and power consumption could be scaled down drastically with much faster response time when the revolutionary alternative liquid tunable microlens is utilized after acquiring a good understanding of microfluidics. The influence of interfacial tension as a key metric in controlling microfluidics systems (e.g. liquid microlens) has drawn considerable attention in biomedical, industrial, military fields over the past decade. Tunable microlenses overcome aforementioned concerns of miniaturizing optical systems and present a viable solution by tuning the focal length of lenses via, for example, variation in the lens curvature.
520 $a Here, a novel tunable dielectrophoretic (DEP)-based tunable lens is presented. Out of many other mechanisms of tuning the lenses, the dielectric mechanism is especially promising since having the capability to achieve a faster response and overcome the electrolysis issue. Nonetheless, DEP usually requires high driving voltage levels. The proposed design is operating with a lowered voltage level and is based on a tunable dielectric liquid lens with a double-sided electrode design, unlike in the conventional scheme with a single-sided electrode design. The design methodology, geometrical analysis, device fabrication, simulation, and testing are demonstrated.
520 $a Furthermore, the design, simulation, fabrication and characterization of a black-silicon (BSi) based iris is discussed. Reducing undesirable light stray reflections from surfaces is desired in many 3D optical elements, such as supporting optomechanical mounts, irises, optical filters, solar cells, and photolithography underlying layers. BSi (as antireflective nanostructures) provides a potential economic solution which is highly absorptive across the visible spectrum to replace many currently used yet expensive coating materials. Si nanowires (SiNW) were formed using a metal-assisted chemical (MAC) etching process to get a conformal antireflective property on the iris 3D structure including sharp tips and sidewalls. A significant reduction in undesirable light stray reflections was achieved as a result of successful implementation of the conformal antireflective surface on all facets of fabricated irises to eliminate undesirable light stray reflections.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Electrical engineering. $3 596380
650 4 $a Nanotechnology. $3 557660
650 4 $a Optics. $3 595336
655 7 $a Electronic books. $2 local $3 554714
690 $a 0544
690 $a 0652
690 $a 0752
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a The University of Wisconsin - Madison. $b Electrical Engineering. $3 1178889
773 0 $t Dissertation Abstracts International $g 79-03B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10687532 $z click for full text (PQDT)