# Applied Physics

**Source**: https://aph.caltech.edu/
**Parent**: https://gradoffice.caltech.edu/academics/optionreps

Caltech's Applied Physics program was founded by faculty who could foresee research subjects not represented in traditional engineering and physics programs. Founded in 1970, it was among the very first Applied Physics programs in the country and has had a profound influence on science and technology, including fiber optic communications. Originally encompassing semiconductor devices and lasers, today it includes subjects spanning quantum engineering to physical biology, and reflects new and varied intersections within science and technology.

[Graduate Program](https://aph.caltech.edu/academics/grad)

[Undergraduate Program](https://aph.caltech.edu/academics/ugrad)

## Events

[All Events](https://aph.caltech.edu/events)

Ongoing

### [Spring Recess](https://aph.caltech.edu/events/spring-recess-87940)

March 23, 2026

9:00 am

### [Due Date for Instructors' Final Grade Reports](https://aph.caltech.edu/events/due-date-for-instructors-final-grade-reports-87944)

March 25, 2026

7:30 pm

### [POSTPONED: Watson Lecture - Katie Bouman: Illuminating the Hidden Universe with Physics and AI](https://aph.caltech.edu/events/watson-lecture-katie-bouman)

[Beckman Auditorium](https://www.caltech.edu/map/campus/beckman-auditorium)

March 30, 2026

12:00 am

### [Beginning of Instruction of Spring Term](https://aph.caltech.edu/events/beginning-of-instruction-of-spring-term-2)

March 31, 2026

9:00 am

### [Undergraduate Academic Standards and Honors Committee Meeting](https://aph.caltech.edu/events/undergraduate-academic-standards-and-honors-committee-meeting-87966)

## News

[All News](https://aph.caltech.edu/news)

March 17, 2026

[Engineering Tiny 3D Metallic Parts](https://aph.caltech.edu/news/engineering-tiny-3d-metallic-parts)

March 4, 2026

[Using Tiny Ripples at Skin Level to Monitor for Possible Health Problems Below](https://aph.caltech.edu/news/using-tiny-ripples-at-skin-level-to-monitor-for-possible-health-problems-below)

February 4, 2026

[Extending Optical Fiber's Ultralow Loss Performance to Photonic Chips](https://aph.caltech.edu/news/extending-optical-fibers-ultralow-loss-performance-to-photonic-chips)

January 16, 2026

[Untangling Entanglement and More](https://magazine.caltech.edu/post/untangling-entanglement-and-more)