keyword

photonics books

Monthly search volume and cost-per-click data for "photonics books" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=photonics+books&country=us" +--------------+------------------+ | volume | 90 | | cpc | $0.22 | | competition | 0.57 | | country | US | | updated | 2026-05-24 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
fundamentals of photonics book	260	$0.95	2/20
book on optics	170	$0.67	2/20
books about optics	170	$0.67	2/20
books on optics	170	$0.67	2/20
optics books	170	$0.36	2/20
photonics textbook	90	$0.22	9/20
photonics book	70	$0.44	13/20
photonics textbooks	70	$0.44	13/20
quantum optics books	50	$0.21	2/20
quantum optics textbooks	50	$0.16	2/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=photonics+books&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt