Diffraction grating

Altice carries a Zacks Rank #3 (Hold).You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.Arista Networks, Inc. ANET, sporting a Zacks Rank #1 at present, is likely to benefit from strong momentum and diversification across its top verticals and product lines. The company has a software-driven, data-centric approach to help customers build their cloud architecture and enhance their cloud experience. Arista has a long-term earnings growth expectation of 15.7% and delivered an earnings surprise of 15.4%, on average, in the trailing four quarters.It holds a leadership position in 100-gigabit Ethernet switching share in port for the high-speed data center segment. Arista is increasingly gaining market traction in 200 and 400-gig high-performance switching products and remains well-positioned for healthy growth in data-driven cloud networking business with proactive platforms and predictive operations.NVIDIA Corporation NVDA, currently flaunting a Zacks Rank #1, is another key pick in the broader industry. It is the worldwide leader in visual computing technologies and the inventor of the graphic processing unit or GPU. Over the years, the company’s focus has evolved from PC graphics to AI-based solutions that now support high-performance computing, gaming and virtual reality platforms.The company’s GPU platforms are playing major roles in developing multi-billion-dollar end-markets like robotics and self-driving vehicles. NVIDIA has a long-term earnings growth expectation of 30.9% and delivered an earnings surprise of 18.4%, on average, in the trailing four quarters.Motorola Solutions, Inc. MSI, carrying a Zacks Rank #2 (Buy) at present, delivered an earnings surprise of 7.5%, on average, in the trailing four quarters. It has a long-term earnings growth expectation of 9.5%.Motorola provides services and solutions to government segments and public safety programs, along with large enterprises and wireless infrastructure service providers. It develops and services both analog and digital two-way radio, voice and data communications products, and systems for private networks, wireless broadband systems and end-to-end enterprise mobility solutions to a wide range of enterprise markets.

Diffraction gratingformula

The lines on gratings are made by an extremely precise machine called a ruling engine, which uses a diamond-tipped tool to press thousands of very fine, shallow lines onto a highly polished surface. Newer techniques rule the lines photographically, using laser interferometry.

A diffraction grating is able to disperse a beam of various wavelengths into a spectrum of associated lines because of the principle of diffraction: in any particular direction, only those waves of a given wavelength will be conserved, all the rest being destroyed because of interference with one another. Gratings give exceptionally high resolutions of spectral lines. The resolving power (R) of an optical instrument represents the ability to separate closely spaced lines in a spectrum and is equal to the wavelength λ divided by the smallest difference (Δλ) in two wavelengths that can be detected; i.e., R = λ/Δλ. Thus, for a grating 10 centimetres wide and ruled with 10,000 lines per centimetre, the resolution in the first diffraction order would be 100,000. For a wavelength emission in the ultraviolet, say λ = 300 nanometres (3 × 10-7 metre), a wavelength difference of Δλ = 3 × 10-12 metre (about 1/100 the diameter of an atom) should be theoretically possible.

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Altice USA Inc. ATUS subsidiary Lightpath is set to significantly boost its service capabilities through the proposed acquisition of United Fiber and Data (“UFD”). The definitive agreement, expected to close in third-quarter 2024, pending regulatory approvals and other customary closing conditions, marks a strategic expansion that promises substantial benefits for Lightpath and its parent company, Altice.UFD operates a unique 323-route mile high-fiber network stretching from New York City to Ashburn, VA, a critical link between the largest U.S. population center and the world's leading data center hub. Additionally, UFD’s 79-route mile metro network in New York City and New Jersey connects more than 350 enterprise and data center locations. This includes a high-fiber crossing of the Hudson River, enhancing Lightpath's existing infrastructure.Integrating UFD's assets will provide several key advantages:Network Expansion and Diversity: UFD’s geographically diverse network complements Lightpath's current infrastructure, expanding its network to more than 20,000 route miles and enhancing its connectivity with over 140 data centers and seven cable landing stations. This will allow Lightpath to offer more geographically diverse, high-capacity services across the East Coast, particularly benefiting high-demand areas like Manhattan and the Ashburn data ecosystem.Technological Advancement: UFD's network features the latest optical technologies from Ciena, supporting dark fiber, Ethernet and wavelengths up to 800 Gbps. This technological edge will enable Lightpath to offer faster and more reliable services, catering to the growing needs of enterprise, hyperscale and wholesale customers.Increased Market Reach: With the acquisition, Lightpath will significantly increase its enterprise and data center coverage in Manhattan nearly fivefold over the past three years. UFD’s customers will gain access to Lightpath’s comprehensive service portfolio, including Wavelengths, Ethernet, Internet, Private Networks and more, enhancing their connectivity options.Enhanced Customer Solutions: Existing UFD customers will benefit from Lightpath’s extensive network and services, facilitating connections to major cloud providers and improving overall service quality and reliability. This expanded service capability is expected to attract more customers and increase market share.Altice’s connectivity solutions stand to witness robust enhancement through Lightpath’s acquisition of UFD. The buyout not only expands Lightpath's network footprint and technological capabilities but also reinforces its position in high-growth markets, promising substantial benefits for both companies and their customers.Altice has lost 15.4% over the past year against the industry’s rise of 46.6%.

diffraction grating, component of optical devices consisting of a surface ruled with close, equidistant, and parallel lines for the purpose of resolving light into spectra. A grating is said to be a transmission or reflection grating according to whether it is transparent or mirrored—that is, whether it is ruled on glass or on a thin metal film deposited on a glass blank. Reflection gratings are further classified as plane or concave, the latter being a spherical surface ruled with lines that are the projection of equidistant and parallel lines on an imaginary plane surface. The advantage of a concave grating over a plane grating is its ability to produce sharp spectral lines without the aid of lenses or additional mirrors. This makes it useful in the infrared and ultraviolet regions in which these radiations would otherwise be absorbed upon passage through a lens.