Results 251 to 260 of about 122,050 (289)

Design of a holographic optical element for a pulse compressor

Applied Optics, 1996
Nonlinear chirped pulse compression can be theoretically achieved to any order by using a nonplane grating with adequate groove spacing. We evaluate the holographic recording of a grating that compensates to the quadratic chirp. A suitable design is found, and the building tolerances are analyzed.
J M, Simon, I, Arias, A, Blesa, G, González-Talaván   +3 more
openaire   +2 more sources

Compact augmented-reality glasses using holographic optical element combiner

OPTO, 2019
The novel design for the compact augmented reality (AR) glasses that utilize holographic optical element (HOE) as a combiner is presented. The wide field of view (FoV) that is larger than 90°, full color and high contrast ratio (CR) are achieved based on
Bongsu Shin, Sunil Kim, V. Druzhin, Polina Malinina, S. Dubynin, A. Bolotova, S. Kopenkin, A. Putilin, Wontaek Seo, Chang-Kun Lee, Geeyoung Sung, Y. Kim, Juwon Seo, Jaeseung Chung, Hong-Seok Lee   +14 more
semanticscholar   +1 more source

Extremely Compact 3D Printed Glass Ternary Diffractive Optical Element for Holographic Images

Advanced Optical Materials
The design and fabrication of compact and versatile holographic structures are critical for advancing next‐generation technologies, ranging from augmented and virtual reality (AR/VR) devices to optical holographic data storage. While significant progress
Ruilin You, Zhihan Hong, Jiabin Chen, Zheng Zhang, Yihan Wang, Yuanyuan Sun, Bofan Song, Douglas A. Loy, Zhongying Ji, Rongguang Liang   +9 more
semanticscholar   +1 more source

Holographic optical element for projection of stereo images

Applied Optics, 1992
We present a holographic element, capable of projecting dynamic stereoimages and allowing the observer to see through the device, forpossible use as a heads-up display in aircraft.
D R, Wuest, R S, Lakes
openaire   +2 more sources

Optical Interconnects with Reflection Holographic Optical Elements

Topical Meeting on Holography, 1986
The increasing demands on micrelectronic circuits for small size and high data rates has pushed electronic interconnection technology to its limit. New techniques are being sought to circumvent these difficulties. Among them are optical interconnections.
R.K. Kostuk, J. W. Goodman, L. Hesselink
openaire   +1 more source

Holographic optical element based digital holographic interferometer for label-free imaging of staphylococcus aureus bacteria

SPIE/COS Photonics Asia, 2019
Staphylococcus aureus (S. aureus) is a round-shaped, aggressive human pathogen that can grow either by fermentation or by utilizing an elective terminal electron acceptor without oxygen. These bacteria can spread from an infected person to others, and it
Vivek Rastogi, S. Agarwal, R. Gadkari, C. Shakher   +3 more
semanticscholar   +1 more source

A Holographic Optical Element for an Integrated Optical Head

Optical Review, 1996
Diffraction efficiencies of a reflection-type blazed holographic optical element (HOE) are analyzed and optimized for use in a totally integrated optical head. The HOE, consisting of four-step phase levels, was fabricated by a double-etching process.
Yoshiaki Kmma, Shin-ichi Kadowaki, Seiji Nishino, Yoshikazu Hori, Makoto Kato   +4 more
openaire   +1 more source

Holographic waveguide-type three-dimensional augmented-reality display using the holographic optical element-mirror array

OPTO, 2019
We proposed a three-dimensional (3D) holographic waveguide-type augmented reality (AR) system based on integral imaging using the mirror array. As same with the conventional holographic waveguide, two holographic optical element (HOE) films are utilized ...
Nyamsuren Darkhanbaatar, Changwon Shin, M. Erdenebat, Kwon-Yeon Lee, Nam Kim   +4 more
semanticscholar   +1 more source

Phase holographic optical elements and geometrical optics

Journal of the Optical Society of America A, 1997
In the framework of geometrical optics, we show that the general ray-tracing formula for finding the direction of the diffracted rays for thin phase holographic optical elements located on any arbitrary continuous surface can be derived in a form similar to Fermat's principle.
P. J. Twardowski, J. Harthong
openaire   +1 more source

Achromatic triplet using holographic optical elements

Applied Optics, 1977
An achromatic optical system can be made using three holographic optical elements. A very simple design scheme is presented, and the properties of the system are discussed.
openaire   +2 more sources