Device for measuring laser beam intensity

Hakob L. Margaryan; Vladimir M. Aroutiounian; Vachagan A. Meliksetyan; Arsen T. Darbasyan; Artsrun H. Arakelyan; Arman V. Khalaytan; Nelson V. Tabirian

doi:10.1117/12.511888

5 January 2004 Device for measuring laser beam intensity

Hakob L. Margaryan, Vladimir M. Aroutiounian, Vachagan A. Meliksetyan, Arsen T. Darbasyan, Artsrun H. Arakelyan, Arman V. Khalaytan, Nelson V. Tabirian

Author Affiliations +

Proceedings Volume 5213, Liquid Crystals VII; (2004) https://doi.org/10.1117/12.511888
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

The giant optical non-linearity of liquid crystals was used to develop a device for measuring intensity of laser beams. The sensitivity of the device was substantially increased by substitution of one of glass substrates of the liquid crystal cell by a photosensitive semiconductor. It is shown that this is due to decreased anchoring energy of LC molecules on the semiconductor surface. The peculiarities of giant optical non-linearity in a liquid crystal cell with one semiconductor substrate are investigated. The discovered regularities allow supposing that the observed decrease in anchoring energy is caused by the semiconductor surface states recharging at light generation.

Citation Download Citation

Hakob L. Margaryan, Vladimir M. Aroutiounian, Vachagan A. Meliksetyan, Arsen T. Darbasyan, Artsrun H. Arakelyan, Arman V. Khalaytan, and Nelson V. Tabirian "Device for measuring laser beam intensity", Proc. SPIE 5213, Liquid Crystals VII, (5 January 2004); https://doi.org/10.1117/12.511888

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available