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Lithography-free photonic chip offers speed and accuracy for AI
Gloved hand holding a photonic chip.

Image: iStock/narong sutinkham

Lithography-free photonic chip offers speed and accuracy for AI

Penn engineers have created a novel photonic device that provides programmable on-chip information processing without lithography, offering the speed, accuracy, and flexibility for AI applications.

From Penn Engineering Today

Moore than meets the eye
Photos of transistors.

Transistors replaced vacuum tubes in the mid-20th century. They were initially made of germanium and later silicon, leading to the development of integrated circuits containing millions to billions of transistors on a single chip. The Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) became the dominant type due to its smaller size, faster speed, and greater energy efficiency. Today, MOSFETs are essential components in modern electronic devices such as computers, smartphones, and power electronics.

(Image: iStockphoto/vlabo)

Moore than meets the eye

Following the death of Gordon Moore, co-founder of Intel and a pioneer in computer processor chips, Penn Today spoke with the School of Engineering and Applied Science’s Benjamin C. Lee about Moore’s contributions to technology and the history and rapid evolution of chips.
The next generation of tiny batteries
Multicolored used electric batteries view from above.

Photo credit: iStock Photo / Olga Shestakova

The next generation of tiny batteries

Assistant professor James Pikul speaks to the growth of interconnected devices and the robotics industry—leading to emerging designs and novel research unlocking the potential for smaller, more powerful batteries
International students offer ‘rich and diverse’ perspectives
A group of international grad students is seen from above on the ground floor of Perry World House.

International graduate students were welcomed on campus at an event at Perry World House in fall 2022. 

(Image: Eddy Marenco).

International students offer ‘rich and diverse’ perspectives

Penn’s campus community includes students from all parts of the globe, bringing their unique experiences and soaking in all the University has to offer.

Kristen de Groot

The hidden costs of AI: Impending energy and resource strain
Industrial landscape with electric power lines, hydroelectric dam and metallurgical plants with smoke in the sky.

In recent years, artificial intelligence (AI) models like ChatGPT have seen notable improvements, with some people concerned about the societal impacts these new technologies may bring including looming concerns related to increasing energy and raw materials demands.

(Image: iStock/Alexey Tolmachov)

  • Q&A

    • The hidden costs of AI: Impending energy and resource strain

    AI models like ChatGPT have seen notable improvements, but some people are concerned about the societal impacts these new technologies may bring. Deep Jariwala and Benjamin C. Lee discuss energy and resource problems with AI computing.
    What can network theory offer public health?
    Microscopic rendering of a coronavirus cell superimposed over data.

    Image: iStock

    What can network theory offer public health?

    Penn Engineering’s Shirin Saeedi Bidokhti and Saswati Sarkar have produced a suite of studies that apply techniques from network and information theory to pandemic control and prevention.

    From Penn Engineering Today

    Eight Penn professors elected 2022 AAAS Fellows
    Two rows of people: William Beltran, Brian Gregory, Insup Lee, Guo-Li Ming. Bottom row: Eric Schelter, Theodore Schurr, Warren Seider, and Karen Winey.

    Penn’s new AAAS Fellows for 2022, clockwise from top left: William Beltran, Brian Gregory, Insup Lee, Guo-Li Ming, Karen Winey, Warren Seider, Theodore Schurr, and Eric Schelter.

    (Images: Trustees of the University of Pennsylvania)

    Eight Penn professors elected 2022 AAAS Fellows

    Researchers from the School of Arts & Sciences, School of Engineering and Applied Science, Perelman School of Medicine, and School of Veterinary Medicine join a class of scientists, engineers, and innovators spanning 24 scientific disciplines.

    Michele W. Berger

    Penn scientist Nader Engheta wins the Benjamin Franklin Medal
    Nader Engheta

    Nader Engheta, the H. Nedwill Ramsey Professor in Electrical and Systems Engineering.

    nocred

    Penn scientist Nader Engheta wins the Benjamin Franklin Medal

    The H. Nedwill Ramsey Professor in Electrical and Systems Engineering is awarded for his advances in engineering and physics.